Home / 31,141.04-42,974.40-17,712.28

Finding the Fourth Proportional to 31,141.04, 42,974.40 and 17,712.28

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Solution

The fourth proportional to 31,141.04, 42,974.40 and 17,712.28 is: 24,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.04 : 42,974.40 = 17,712.28 : x
  2. Step 2: Convert to fraction form
    31,141.04/42,974.40 = 17,712.28/x
  3. Step 3: Cross multiply
    31,141.04x = 42,974.40 × 17,712.28
  4. Step 4: Simplify right side
    31,141.04x = 761,174,302.20
  5. Step 5: Solve for x
    x = 761,174,302.20/31,141.04
  6. Step 6: Final answer
    x = 24,442.80

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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.