Home / 31,001.40-42,785.27-17,571.21

Finding the Fourth Proportional to 31,001.40, 42,785.27 and 17,571.21

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Solution

The fourth proportional to 31,001.40, 42,785.27 and 17,571.21 is: 24,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.40 : 42,785.27 = 17,571.21 : x
  2. Step 2: Convert to fraction form
    31,001.40/42,785.27 = 17,571.21/x
  3. Step 3: Cross multiply
    31,001.40x = 42,785.27 × 17,571.21
  4. Step 4: Simplify right side
    31,001.40x = 751,788,964.08
  5. Step 5: Solve for x
    x = 751,788,964.08/31,001.40
  6. Step 6: Final answer
    x = 24,250.16

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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.