Home / 31,001.30-42,782.67-17,572.01

Finding the Fourth Proportional to 31,001.30, 42,782.67 and 17,572.01

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Solution

The fourth proportional to 31,001.30, 42,782.67 and 17,572.01 is: 24,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.30 : 42,782.67 = 17,572.01 : x
  2. Step 2: Convert to fraction form
    31,001.30/42,782.67 = 17,572.01/x
  3. Step 3: Cross multiply
    31,001.30x = 42,782.67 × 17,572.01
  4. Step 4: Simplify right side
    31,001.30x = 751,777,291.15
  5. Step 5: Solve for x
    x = 751,777,291.15/31,001.30
  6. Step 6: Final answer
    x = 24,249.87

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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.