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Finding the Fourth Proportional to 25,458.70, 35,125.05 and 14,702.20

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Solution

The fourth proportional to 25,458.70, 35,125.05 and 14,702.20 is: 20,284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.70 : 35,125.05 = 14,702.20 : x
  2. Step 2: Convert to fraction form
    25,458.70/35,125.05 = 14,702.20/x
  3. Step 3: Cross multiply
    25,458.70x = 35,125.05 × 14,702.20
  4. Step 4: Simplify right side
    25,458.70x = 516,415,510.11
  5. Step 5: Solve for x
    x = 516,415,510.11/25,458.70
  6. Step 6: Final answer
    x = 20,284.44

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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.