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Finding the Fourth Proportional to 31,751.80, 47,613.30 and 12,023.80

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Solution

The fourth proportional to 31,751.80, 47,613.30 and 12,023.80 is: 18,030.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.80 : 47,613.30 = 12,023.80 : x
  2. Step 2: Convert to fraction form
    31,751.80/47,613.30 = 12,023.80/x
  3. Step 3: Cross multiply
    31,751.80x = 47,613.30 × 12,023.80
  4. Step 4: Simplify right side
    31,751.80x = 572,492,796.54
  5. Step 5: Solve for x
    x = 572,492,796.54/31,751.80
  6. Step 6: Final answer
    x = 18,030.25

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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.