Home / 20,924,475.50-28,887,615.16-13,588,869.26

Finding the Fourth Proportional to 20,924,475.50, 28,887,615.16 and 13,588,869.26

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Solution

The fourth proportional to 20,924,475.50, 28,887,615.16 and 13,588,869.26 is: 18,760,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924,475.50 : 28,887,615.16 = 13,588,869.26 : x
  2. Step 2: Convert to fraction form
    20,924,475.50/28,887,615.16 = 13,588,869.26/x
  3. Step 3: Cross multiply
    20,924,475.50x = 28,887,615.16 × 13,588,869.26
  4. Step 4: Simplify right side
    20,924,475.50x = 392,550,025,642,434
  5. Step 5: Solve for x
    x = 392,550,025,642,434/20,924,475.50
  6. Step 6: Final answer
    x = 18,760,328.10

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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.