Home / 31,642.48-47,500.40-18,504.28

Finding the Fourth Proportional to 31,642.48, 47,500.40 and 18,504.28

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Solution

The fourth proportional to 31,642.48, 47,500.40 and 18,504.28 is: 27,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.48 : 47,500.40 = 18,504.28 : x
  2. Step 2: Convert to fraction form
    31,642.48/47,500.40 = 18,504.28/x
  3. Step 3: Cross multiply
    31,642.48x = 47,500.40 × 18,504.28
  4. Step 4: Simplify right side
    31,642.48x = 878,960,701.71
  5. Step 5: Solve for x
    x = 878,960,701.71/31,642.48
  6. Step 6: Final answer
    x = 27,777.87

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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.