Home / 38,724.12-58,032.12-20,916.39

Finding the Fourth Proportional to 38,724.12, 58,032.12 and 20,916.39

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Solution

The fourth proportional to 38,724.12, 58,032.12 and 20,916.39 is: 31,345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,724.12 : 58,032.12 = 20,916.39 : x
  2. Step 2: Convert to fraction form
    38,724.12/58,032.12 = 20,916.39/x
  3. Step 3: Cross multiply
    38,724.12x = 58,032.12 × 20,916.39
  4. Step 4: Simplify right side
    38,724.12x = 1,213,822,204.78
  5. Step 5: Solve for x
    x = 1,213,822,204.78/38,724.12
  6. Step 6: Final answer
    x = 31,345.38

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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.