Home / 31,780.04-47,659.12-12,064.23

Finding the Fourth Proportional to 31,780.04, 47,659.12 and 12,064.23

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Solution

The fourth proportional to 31,780.04, 47,659.12 and 12,064.23 is: 18,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.04 : 47,659.12 = 12,064.23 : x
  2. Step 2: Convert to fraction form
    31,780.04/47,659.12 = 12,064.23/x
  3. Step 3: Cross multiply
    31,780.04x = 47,659.12 × 12,064.23
  4. Step 4: Simplify right side
    31,780.04x = 574,970,555.12
  5. Step 5: Solve for x
    x = 574,970,555.12/31,780.04
  6. Step 6: Final answer
    x = 18,092.19

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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.