Home / 21,550,139.20-32,340,955.20-15,172,847.20

Finding the Fourth Proportional to 21,550,139.20, 32,340,955.20 and 15,172,847.20

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Solution

The fourth proportional to 21,550,139.20, 32,340,955.20 and 15,172,847.20 is: 22,770,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550,139.20 : 32,340,955.20 = 15,172,847.20 : x
  2. Step 2: Convert to fraction form
    21,550,139.20/32,340,955.20 = 15,172,847.20/x
  3. Step 3: Cross multiply
    21,550,139.20x = 32,340,955.20 × 15,172,847.20
  4. Step 4: Simplify right side
    21,550,139.20x = 490,704,371,551,645.38
  5. Step 5: Solve for x
    x = 490,704,371,551,645.38/21,550,139.20
  6. Step 6: Final answer
    x = 22,770,357.40

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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.