Home / 25,155.72-37,726.80-11,981.88

Finding the Fourth Proportional to 25,155.72, 37,726.80 and 11,981.88

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Solution

The fourth proportional to 25,155.72, 37,726.80 and 11,981.88 is: 17,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.72 : 37,726.80 = 11,981.88 : x
  2. Step 2: Convert to fraction form
    25,155.72/37,726.80 = 11,981.88/x
  3. Step 3: Cross multiply
    25,155.72x = 37,726.80 × 11,981.88
  4. Step 4: Simplify right side
    25,155.72x = 452,037,990.38
  5. Step 5: Solve for x
    x = 452,037,990.38/25,155.72
  6. Step 6: Final answer
    x = 17,969.59

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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.