Home / 15,990.21-23,985.32-4,303.13

Finding the Fourth Proportional to 15,990.21, 23,985.32 and 4,303.13

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Solution

The fourth proportional to 15,990.21, 23,985.32 and 4,303.13 is: 6,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.21 : 23,985.32 = 4,303.13 : x
  2. Step 2: Convert to fraction form
    15,990.21/23,985.32 = 4,303.13/x
  3. Step 3: Cross multiply
    15,990.21x = 23,985.32 × 4,303.13
  4. Step 4: Simplify right side
    15,990.21x = 103,211,808.61
  5. Step 5: Solve for x
    x = 103,211,808.61/15,990.21
  6. Step 6: Final answer
    x = 6,454.69

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.