Home / 26,798.20-36,938.89-21,123.74

Finding the Fourth Proportional to 26,798.20, 36,938.89 and 21,123.74

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Solution

The fourth proportional to 26,798.20, 36,938.89 and 21,123.74 is: 29,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,798.20 : 36,938.89 = 21,123.74 : x
  2. Step 2: Convert to fraction form
    26,798.20/36,938.89 = 21,123.74/x
  3. Step 3: Cross multiply
    26,798.20x = 36,938.89 × 21,123.74
  4. Step 4: Simplify right side
    26,798.20x = 780,287,508.25
  5. Step 5: Solve for x
    x = 780,287,508.25/26,798.20
  6. Step 6: Final answer
    x = 29,117.16

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1.5x scale

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.