Home / 31,271.76-43,154.28-17,125.20

Finding the Fourth Proportional to 31,271.76, 43,154.28 and 17,125.20

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Solution

The fourth proportional to 31,271.76, 43,154.28 and 17,125.20 is: 23,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.76 : 43,154.28 = 17,125.20 : x
  2. Step 2: Convert to fraction form
    31,271.76/43,154.28 = 17,125.20/x
  3. Step 3: Cross multiply
    31,271.76x = 43,154.28 × 17,125.20
  4. Step 4: Simplify right side
    31,271.76x = 739,025,675.86
  5. Step 5: Solve for x
    x = 739,025,675.86/31,271.76
  6. Step 6: Final answer
    x = 23,632.37

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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.