Home / 31,711.79-43,762.94-17,564.63

Finding the Fourth Proportional to 31,711.79, 43,762.94 and 17,564.63

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Solution

The fourth proportional to 31,711.79, 43,762.94 and 17,564.63 is: 24,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.79 : 43,762.94 = 17,564.63 : x
  2. Step 2: Convert to fraction form
    31,711.79/43,762.94 = 17,564.63/x
  3. Step 3: Cross multiply
    31,711.79x = 43,762.94 × 17,564.63
  4. Step 4: Simplify right side
    31,711.79x = 768,679,542.17
  5. Step 5: Solve for x
    x = 768,679,542.17/31,711.79
  6. Step 6: Final answer
    x = 24,239.55

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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.