Home / 20,658.97-28,499.63-14,981.26

Finding the Fourth Proportional to 20,658.97, 28,499.63 and 14,981.26

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Solution

The fourth proportional to 20,658.97, 28,499.63 and 14,981.26 is: 20,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.97 : 28,499.63 = 14,981.26 : x
  2. Step 2: Convert to fraction form
    20,658.97/28,499.63 = 14,981.26/x
  3. Step 3: Cross multiply
    20,658.97x = 28,499.63 × 14,981.26
  4. Step 4: Simplify right side
    20,658.97x = 426,960,381.61
  5. Step 5: Solve for x
    x = 426,960,381.61/20,658.97
  6. Step 6: Final answer
    x = 20,667.07

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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.