Home / 28,726.27-39,644.64-15,981.85

Finding the Fourth Proportional to 28,726.27, 39,644.64 and 15,981.85

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Solution

The fourth proportional to 28,726.27, 39,644.64 and 15,981.85 is: 22,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.27 : 39,644.64 = 15,981.85 : x
  2. Step 2: Convert to fraction form
    28,726.27/39,644.64 = 15,981.85/x
  3. Step 3: Cross multiply
    28,726.27x = 39,644.64 × 15,981.85
  4. Step 4: Simplify right side
    28,726.27x = 633,594,590.67
  5. Step 5: Solve for x
    x = 633,594,590.67/28,726.27
  6. Step 6: Final answer
    x = 22,056.28

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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.