Home / 31,475.10-47,169.45-25,643.10

Finding the Fourth Proportional to 31,475.10, 47,169.45 and 25,643.10

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Solution

The fourth proportional to 31,475.10, 47,169.45 and 25,643.10 is: 38,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.10 : 47,169.45 = 25,643.10 : x
  2. Step 2: Convert to fraction form
    31,475.10/47,169.45 = 25,643.10/x
  3. Step 3: Cross multiply
    31,475.10x = 47,169.45 × 25,643.10
  4. Step 4: Simplify right side
    31,475.10x = 1,209,570,923.30
  5. Step 5: Solve for x
    x = 1,209,570,923.30/31,475.10
  6. Step 6: Final answer
    x = 38,429.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.