Home / 38,934-58,439.88-28,436.40

Finding the Fourth Proportional to 38,934, 58,439.88 and 28,436.40

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Solution

The fourth proportional to 38,934, 58,439.88 and 28,436.40 is: 42,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,934 : 58,439.88 = 28,436.40 : x
  2. Step 2: Convert to fraction form
    38,934/58,439.88 = 28,436.40/x
  3. Step 3: Cross multiply
    38,934x = 58,439.88 × 28,436.40
  4. Step 4: Simplify right side
    38,934x = 1,661,819,803.63
  5. Step 5: Solve for x
    x = 1,661,819,803.63/38,934
  6. Step 6: Final answer
    x = 42,683.00

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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.