Home / 34,537.70-47,660.19-20,385.38

Finding the Fourth Proportional to 34,537.70, 47,660.19 and 20,385.38

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Solution

The fourth proportional to 34,537.70, 47,660.19 and 20,385.38 is: 28,130.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,537.70 : 47,660.19 = 20,385.38 : x
  2. Step 2: Convert to fraction form
    34,537.70/47,660.19 = 20,385.38/x
  3. Step 3: Cross multiply
    34,537.70x = 47,660.19 × 20,385.38
  4. Step 4: Simplify right side
    34,537.70x = 971,571,084.02
  5. Step 5: Solve for x
    x = 971,571,084.02/34,537.70
  6. Step 6: Final answer
    x = 28,130.74

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1.5x scale

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.