Home / 25,308.46-34,925.50-13,978.70

Finding the Fourth Proportional to 25,308.46, 34,925.50 and 13,978.70

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Solution

The fourth proportional to 25,308.46, 34,925.50 and 13,978.70 is: 19,290.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,308.46 : 34,925.50 = 13,978.70 : x
  2. Step 2: Convert to fraction form
    25,308.46/34,925.50 = 13,978.70/x
  3. Step 3: Cross multiply
    25,308.46x = 34,925.50 × 13,978.70
  4. Step 4: Simplify right side
    25,308.46x = 488,213,086.85
  5. Step 5: Solve for x
    x = 488,213,086.85/25,308.46
  6. Step 6: Final answer
    x = 19,290.51

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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.