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Finding the Fourth Proportional to 15,990.66, 23,985.99 and 4,303.89

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Solution

The fourth proportional to 15,990.66, 23,985.99 and 4,303.89 is: 6,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.66 : 23,985.99 = 4,303.89 : x
  2. Step 2: Convert to fraction form
    15,990.66/23,985.99 = 4,303.89/x
  3. Step 3: Cross multiply
    15,990.66x = 23,985.99 × 4,303.89
  4. Step 4: Simplify right side
    15,990.66x = 103,233,062.50
  5. Step 5: Solve for x
    x = 103,233,062.50/15,990.66
  6. Step 6: Final answer
    x = 6,455.84

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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.