Home / 38,881.28-58,332.11-12,226.20

Finding the Fourth Proportional to 38,881.28, 58,332.11 and 12,226.20

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Solution

The fourth proportional to 38,881.28, 58,332.11 and 12,226.20 is: 18,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881.28 : 58,332.11 = 12,226.20 : x
  2. Step 2: Convert to fraction form
    38,881.28/58,332.11 = 12,226.20/x
  3. Step 3: Cross multiply
    38,881.28x = 58,332.11 × 12,226.20
  4. Step 4: Simplify right side
    38,881.28x = 713,179,809.25
  5. Step 5: Solve for x
    x = 713,179,809.25/38,881.28
  6. Step 6: Final answer
    x = 18,342.50

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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.