Home / 31,101.60-42,920.10-16,954.44

Finding the Fourth Proportional to 31,101.60, 42,920.10 and 16,954.44

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Solution

The fourth proportional to 31,101.60, 42,920.10 and 16,954.44 is: 23,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,101.60 : 42,920.10 = 16,954.44 : x
  2. Step 2: Convert to fraction form
    31,101.60/42,920.10 = 16,954.44/x
  3. Step 3: Cross multiply
    31,101.60x = 42,920.10 × 16,954.44
  4. Step 4: Simplify right side
    31,101.60x = 727,686,260.24
  5. Step 5: Solve for x
    x = 727,686,260.24/31,101.60
  6. Step 6: Final answer
    x = 23,397.07

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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.