Home / 20,539,403.28-28,345,262.25-11,372,046

Finding the Fourth Proportional to 20,539,403.28, 28,345,262.25 and 11,372,046

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Solution

The fourth proportional to 20,539,403.28, 28,345,262.25 and 11,372,046 is: 15,693,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,403.28 : 28,345,262.25 = 11,372,046 : x
  2. Step 2: Convert to fraction form
    20,539,403.28/28,345,262.25 = 11,372,046/x
  3. Step 3: Cross multiply
    20,539,403.28x = 28,345,262.25 × 11,372,046
  4. Step 4: Simplify right side
    20,539,403.28x = 322,343,626,189,063.50
  5. Step 5: Solve for x
    x = 322,343,626,189,063.50/20,539,403.28
  6. Step 6: Final answer
    x = 15,693,913.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.