Home / 31,381.02-47,071.52-9,194.39

Finding the Fourth Proportional to 31,381.02, 47,071.52 and 9,194.39

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Solution

The fourth proportional to 31,381.02, 47,071.52 and 9,194.39 is: 13,791.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,381.02 : 47,071.52 = 9,194.39 : x
  2. Step 2: Convert to fraction form
    31,381.02/47,071.52 = 9,194.39/x
  3. Step 3: Cross multiply
    31,381.02x = 47,071.52 × 9,194.39
  4. Step 4: Simplify right side
    31,381.02x = 432,793,868.30
  5. Step 5: Solve for x
    x = 432,793,868.30/31,381.02
  6. Step 6: Final answer
    x = 13,791.58

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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.