Home / 31,001.37-42,781.95-16,854.18

Finding the Fourth Proportional to 31,001.37, 42,781.95 and 16,854.18

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Solution

The fourth proportional to 31,001.37, 42,781.95 and 16,854.18 is: 23,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.37 : 42,781.95 = 16,854.18 : x
  2. Step 2: Convert to fraction form
    31,001.37/42,781.95 = 16,854.18/x
  3. Step 3: Cross multiply
    31,001.37x = 42,781.95 × 16,854.18
  4. Step 4: Simplify right side
    31,001.37x = 721,054,686.05
  5. Step 5: Solve for x
    x = 721,054,686.05/31,001.37
  6. Step 6: Final answer
    x = 23,258.80

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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.