Home / 25,000.12-34,500.24-13,669.76

Finding the Fourth Proportional to 25,000.12, 34,500.24 and 13,669.76

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Solution

The fourth proportional to 25,000.12, 34,500.24 and 13,669.76 is: 18,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,000.12 : 34,500.24 = 13,669.76 : x
  2. Step 2: Convert to fraction form
    25,000.12/34,500.24 = 13,669.76/x
  3. Step 3: Cross multiply
    25,000.12x = 34,500.24 × 13,669.76
  4. Step 4: Simplify right side
    25,000.12x = 471,610,000.74
  5. Step 5: Solve for x
    x = 471,610,000.74/25,000.12
  6. Step 6: Final answer
    x = 18,864.31

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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.