Home / 31,685.88-47,508.78-26,987.48

Finding the Fourth Proportional to 31,685.88, 47,508.78 and 26,987.48

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Solution

The fourth proportional to 31,685.88, 47,508.78 and 26,987.48 is: 40,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.88 : 47,508.78 = 26,987.48 : x
  2. Step 2: Convert to fraction form
    31,685.88/47,508.78 = 26,987.48/x
  3. Step 3: Cross multiply
    31,685.88x = 47,508.78 × 26,987.48
  4. Step 4: Simplify right side
    31,685.88x = 1,282,142,250.07
  5. Step 5: Solve for x
    x = 1,282,142,250.07/31,685.88
  6. Step 6: Final answer
    x = 40,464.15

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1.5x scale

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.