Home / 31,098.77-42,917.18-19,001.22

Finding the Fourth Proportional to 31,098.77, 42,917.18 and 19,001.22

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Solution

The fourth proportional to 31,098.77, 42,917.18 and 19,001.22 is: 26,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098.77 : 42,917.18 = 19,001.22 : x
  2. Step 2: Convert to fraction form
    31,098.77/42,917.18 = 19,001.22/x
  3. Step 3: Cross multiply
    31,098.77x = 42,917.18 × 19,001.22
  4. Step 4: Simplify right side
    31,098.77x = 815,478,523.01
  5. Step 5: Solve for x
    x = 815,478,523.01/31,098.77
  6. Step 6: Final answer
    x = 26,222.21

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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.