Home / 25,215.30-34,801.65-14,610.78

Finding the Fourth Proportional to 25,215.30, 34,801.65 and 14,610.78

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Solution

The fourth proportional to 25,215.30, 34,801.65 and 14,610.78 is: 20,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,215.30 : 34,801.65 = 14,610.78 : x
  2. Step 2: Convert to fraction form
    25,215.30/34,801.65 = 14,610.78/x
  3. Step 3: Cross multiply
    25,215.30x = 34,801.65 × 14,610.78
  4. Step 4: Simplify right side
    25,215.30x = 508,479,251.79
  5. Step 5: Solve for x
    x = 508,479,251.79/25,215.30
  6. Step 6: Final answer
    x = 20,165.50

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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.