Home / 38,947.83-58,424.57-13,988.09

Finding the Fourth Proportional to 38,947.83, 58,424.57 and 13,988.09

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Solution

The fourth proportional to 38,947.83, 58,424.57 and 13,988.09 is: 20,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,947.83 : 58,424.57 = 13,988.09 : x
  2. Step 2: Convert to fraction form
    38,947.83/58,424.57 = 13,988.09/x
  3. Step 3: Cross multiply
    38,947.83x = 58,424.57 × 13,988.09
  4. Step 4: Simplify right side
    38,947.83x = 817,247,781.31
  5. Step 5: Solve for x
    x = 817,247,781.31/38,947.83
  6. Step 6: Final answer
    x = 20,983.14

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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.