Home / 38,691.48-58,033.35-12,389.16

Finding the Fourth Proportional to 38,691.48, 58,033.35 and 12,389.16

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Solution

The fourth proportional to 38,691.48, 58,033.35 and 12,389.16 is: 18,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.48 : 58,033.35 = 12,389.16 : x
  2. Step 2: Convert to fraction form
    38,691.48/58,033.35 = 12,389.16/x
  3. Step 3: Cross multiply
    38,691.48x = 58,033.35 × 12,389.16
  4. Step 4: Simplify right side
    38,691.48x = 718,984,458.49
  5. Step 5: Solve for x
    x = 718,984,458.49/38,691.48
  6. Step 6: Final answer
    x = 18,582.50

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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.