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Finding the Fourth Proportional to 34,901.70, 52,364.70 and 12,715.80

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Solution

The fourth proportional to 34,901.70, 52,364.70 and 12,715.80 is: 19,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,901.70 : 52,364.70 = 12,715.80 : x
  2. Step 2: Convert to fraction form
    34,901.70/52,364.70 = 12,715.80/x
  3. Step 3: Cross multiply
    34,901.70x = 52,364.70 × 12,715.80
  4. Step 4: Simplify right side
    34,901.70x = 665,859,052.26
  5. Step 5: Solve for x
    x = 665,859,052.26/34,901.70
  6. Step 6: Final answer
    x = 19,078.13

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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.