Home / 31,281.47-43,168.44-17,134.55

Finding the Fourth Proportional to 31,281.47, 43,168.44 and 17,134.55

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Solution

The fourth proportional to 31,281.47, 43,168.44 and 17,134.55 is: 23,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.47 : 43,168.44 = 17,134.55 : x
  2. Step 2: Convert to fraction form
    31,281.47/43,168.44 = 17,134.55/x
  3. Step 3: Cross multiply
    31,281.47x = 43,168.44 × 17,134.55
  4. Step 4: Simplify right side
    31,281.47x = 739,671,577.76
  5. Step 5: Solve for x
    x = 739,671,577.76/31,281.47
  6. Step 6: Final answer
    x = 23,645.68

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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.