Home / 31,490.74-43,459.19-17,343.58

Finding the Fourth Proportional to 31,490.74, 43,459.19 and 17,343.58

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Solution

The fourth proportional to 31,490.74, 43,459.19 and 17,343.58 is: 23,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490.74 : 43,459.19 = 17,343.58 : x
  2. Step 2: Convert to fraction form
    31,490.74/43,459.19 = 17,343.58/x
  3. Step 3: Cross multiply
    31,490.74x = 43,459.19 × 17,343.58
  4. Step 4: Simplify right side
    31,490.74x = 753,737,938.50
  5. Step 5: Solve for x
    x = 753,737,938.50/31,490.74
  6. Step 6: Final answer
    x = 23,935.22

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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.