Home / 22,697.76-31,307.32-13,729.80

Finding the Fourth Proportional to 22,697.76, 31,307.32 and 13,729.80

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Solution

The fourth proportional to 22,697.76, 31,307.32 and 13,729.80 is: 18,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,697.76 : 31,307.32 = 13,729.80 : x
  2. Step 2: Convert to fraction form
    22,697.76/31,307.32 = 13,729.80/x
  3. Step 3: Cross multiply
    22,697.76x = 31,307.32 × 13,729.80
  4. Step 4: Simplify right side
    22,697.76x = 429,843,242.14
  5. Step 5: Solve for x
    x = 429,843,242.14/22,697.76
  6. Step 6: Final answer
    x = 18,937.69

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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.