Home / 21,870,019.20-32,805,028.80-20,610,307.20

Finding the Fourth Proportional to 21,870,019.20, 32,805,028.80 and 20,610,307.20

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Solution

The fourth proportional to 21,870,019.20, 32,805,028.80 and 20,610,307.20 is: 30,915,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,019.20 : 32,805,028.80 = 20,610,307.20 : x
  2. Step 2: Convert to fraction form
    21,870,019.20/32,805,028.80 = 20,610,307.20/x
  3. Step 3: Cross multiply
    21,870,019.20x = 32,805,028.80 × 20,610,307.20
  4. Step 4: Simplify right side
    21,870,019.20x = 676,121,721,272,847.38
  5. Step 5: Solve for x
    x = 676,121,721,272,847.38/21,870,019.20
  6. Step 6: Final answer
    x = 30,915,460.80

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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.