Home / 47,548.28-65,618.88-28,685

Finding the Fourth Proportional to 47,548.28, 65,618.88 and 28,685

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Solution

The fourth proportional to 47,548.28, 65,618.88 and 28,685 is: 39,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,548.28 : 65,618.88 = 28,685 : x
  2. Step 2: Convert to fraction form
    47,548.28/65,618.88 = 28,685/x
  3. Step 3: Cross multiply
    47,548.28x = 65,618.88 × 28,685
  4. Step 4: Simplify right side
    47,548.28x = 1,882,277,572.80
  5. Step 5: Solve for x
    x = 1,882,277,572.80/47,548.28
  6. Step 6: Final answer
    x = 39,586.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.