Home / 38,139.12-52,630.56-21,371.04

Finding the Fourth Proportional to 38,139.12, 52,630.56 and 21,371.04

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Solution

The fourth proportional to 38,139.12, 52,630.56 and 21,371.04 is: 29,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.12 : 52,630.56 = 21,371.04 : x
  2. Step 2: Convert to fraction form
    38,139.12/52,630.56 = 21,371.04/x
  3. Step 3: Cross multiply
    38,139.12x = 52,630.56 × 21,371.04
  4. Step 4: Simplify right side
    38,139.12x = 1,124,769,802.98
  5. Step 5: Solve for x
    x = 1,124,769,802.98/38,139.12
  6. Step 6: Final answer
    x = 29,491.24

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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.