Home / 38,809.76-58,219.56-12,513.92

Finding the Fourth Proportional to 38,809.76, 58,219.56 and 12,513.92

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Solution

The fourth proportional to 38,809.76, 58,219.56 and 12,513.92 is: 18,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809.76 : 58,219.56 = 12,513.92 : x
  2. Step 2: Convert to fraction form
    38,809.76/58,219.56 = 12,513.92/x
  3. Step 3: Cross multiply
    38,809.76x = 58,219.56 × 12,513.92
  4. Step 4: Simplify right side
    38,809.76x = 728,554,916.28
  5. Step 5: Solve for x
    x = 728,554,916.28/38,809.76
  6. Step 6: Final answer
    x = 18,772.47

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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.