Home / 22,972.89-31,704.63-13,539.63

Finding the Fourth Proportional to 22,972.89, 31,704.63 and 13,539.63

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Solution

The fourth proportional to 22,972.89, 31,704.63 and 13,539.63 is: 18,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,972.89 : 31,704.63 = 13,539.63 : x
  2. Step 2: Convert to fraction form
    22,972.89/31,704.63 = 13,539.63/x
  3. Step 3: Cross multiply
    22,972.89x = 31,704.63 × 13,539.63
  4. Step 4: Simplify right side
    22,972.89x = 429,268,959.49
  5. Step 5: Solve for x
    x = 429,268,959.49/22,972.89
  6. Step 6: Final answer
    x = 18,685.89

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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.