Home / 31,643.17-47,538.57-18,504.79

Finding the Fourth Proportional to 31,643.17, 47,538.57 and 18,504.79

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Solution

The fourth proportional to 31,643.17, 47,538.57 and 18,504.79 is: 27,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,643.17 : 47,538.57 = 18,504.79 : x
  2. Step 2: Convert to fraction form
    31,643.17/47,538.57 = 18,504.79/x
  3. Step 3: Cross multiply
    31,643.17x = 47,538.57 × 18,504.79
  4. Step 4: Simplify right side
    31,643.17x = 879,691,254.75
  5. Step 5: Solve for x
    x = 879,691,254.75/31,643.17
  6. Step 6: Final answer
    x = 27,800.35

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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.