Home / 37,321.20-55,981.80-12,365.10

Finding the Fourth Proportional to 37,321.20, 55,981.80 and 12,365.10

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Solution

The fourth proportional to 37,321.20, 55,981.80 and 12,365.10 is: 18,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,321.20 : 55,981.80 = 12,365.10 : x
  2. Step 2: Convert to fraction form
    37,321.20/55,981.80 = 12,365.10/x
  3. Step 3: Cross multiply
    37,321.20x = 55,981.80 × 12,365.10
  4. Step 4: Simplify right side
    37,321.20x = 692,220,555.18
  5. Step 5: Solve for x
    x = 692,220,555.18/37,321.20
  6. Step 6: Final answer
    x = 18,547.65

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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.