Home / 31,475.89-43,432.22-18,047.71

Finding the Fourth Proportional to 31,475.89, 43,432.22 and 18,047.71

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Solution

The fourth proportional to 31,475.89, 43,432.22 and 18,047.71 is: 24,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.89 : 43,432.22 = 18,047.71 : x
  2. Step 2: Convert to fraction form
    31,475.89/43,432.22 = 18,047.71/x
  3. Step 3: Cross multiply
    31,475.89x = 43,432.22 × 18,047.71
  4. Step 4: Simplify right side
    31,475.89x = 783,851,803.82
  5. Step 5: Solve for x
    x = 783,851,803.82/31,475.89
  6. Step 6: Final answer
    x = 24,903.25

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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.