Home / 31,140.24-42,974.72-17,712.73

Finding the Fourth Proportional to 31,140.24, 42,974.72 and 17,712.73

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Solution

The fourth proportional to 31,140.24, 42,974.72 and 17,712.73 is: 24,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.24 : 42,974.72 = 17,712.73 : x
  2. Step 2: Convert to fraction form
    31,140.24/42,974.72 = 17,712.73/x
  3. Step 3: Cross multiply
    31,140.24x = 42,974.72 × 17,712.73
  4. Step 4: Simplify right side
    31,140.24x = 761,199,612.19
  5. Step 5: Solve for x
    x = 761,199,612.19/31,140.24
  6. Step 6: Final answer
    x = 24,444.24

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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.