Home / 31,372.02-47,064.15-9,185.76

Finding the Fourth Proportional to 31,372.02, 47,064.15 and 9,185.76

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Solution

The fourth proportional to 31,372.02, 47,064.15 and 9,185.76 is: 13,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.02 : 47,064.15 = 9,185.76 : x
  2. Step 2: Convert to fraction form
    31,372.02/47,064.15 = 9,185.76/x
  3. Step 3: Cross multiply
    31,372.02x = 47,064.15 × 9,185.76
  4. Step 4: Simplify right side
    31,372.02x = 432,319,986.50
  5. Step 5: Solve for x
    x = 432,319,986.50/31,372.02
  6. Step 6: Final answer
    x = 13,780.43

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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.