Home / 26,024,031.20-38,988,807.60-21,205,632.80

Finding the Fourth Proportional to 26,024,031.20, 38,988,807.60 and 21,205,632.80

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Solution

The fourth proportional to 26,024,031.20, 38,988,807.60 and 21,205,632.80 is: 31,769,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,024,031.20 : 38,988,807.60 = 21,205,632.80 : x
  2. Step 2: Convert to fraction form
    26,024,031.20/38,988,807.60 = 21,205,632.80/x
  3. Step 3: Cross multiply
    26,024,031.20x = 38,988,807.60 × 21,205,632.80
  4. Step 4: Simplify right side
    26,024,031.20x = 826,782,337,275,449.38
  5. Step 5: Solve for x
    x = 826,782,337,275,449.38/26,024,031.20
  6. Step 6: Final answer
    x = 31,769,956.43

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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.