Home / 31,475.16-43,435.86-18,047.20

Finding the Fourth Proportional to 31,475.16, 43,435.86 and 18,047.20

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Solution

The fourth proportional to 31,475.16, 43,435.86 and 18,047.20 is: 24,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.16 : 43,435.86 = 18,047.20 : x
  2. Step 2: Convert to fraction form
    31,475.16/43,435.86 = 18,047.20/x
  3. Step 3: Cross multiply
    31,475.16x = 43,435.86 × 18,047.20
  4. Step 4: Simplify right side
    31,475.16x = 783,895,652.59
  5. Step 5: Solve for x
    x = 783,895,652.59/31,475.16
  6. Step 6: Final answer
    x = 24,905.22

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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.