Home / 26,315.76-39,468.80-11,521.92

Finding the Fourth Proportional to 26,315.76, 39,468.80 and 11,521.92

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Solution

The fourth proportional to 26,315.76, 39,468.80 and 11,521.92 is: 17,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.76 : 39,468.80 = 11,521.92 : x
  2. Step 2: Convert to fraction form
    26,315.76/39,468.80 = 11,521.92/x
  3. Step 3: Cross multiply
    26,315.76x = 39,468.80 × 11,521.92
  4. Step 4: Simplify right side
    26,315.76x = 454,756,356.10
  5. Step 5: Solve for x
    x = 454,756,356.10/26,315.76
  6. Step 6: Final answer
    x = 17,280.76

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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.