Home / 21,260,219.20-31,890,328.80-17,008,691.20

Finding the Fourth Proportional to 21,260,219.20, 31,890,328.80 and 17,008,691.20

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Solution

The fourth proportional to 21,260,219.20, 31,890,328.80 and 17,008,691.20 is: 25,513,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,219.20 : 31,890,328.80 = 17,008,691.20 : x
  2. Step 2: Convert to fraction form
    21,260,219.20/31,890,328.80 = 17,008,691.20/x
  3. Step 3: Cross multiply
    21,260,219.20x = 31,890,328.80 × 17,008,691.20
  4. Step 4: Simplify right side
    21,260,219.20x = 542,412,754,825,666.56
  5. Step 5: Solve for x
    x = 542,412,754,825,666.56/21,260,219.20
  6. Step 6: Final answer
    x = 25,513,036.80

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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.