Home / 23,290.90-32,140.47-12,679.90

Finding the Fourth Proportional to 23,290.90, 32,140.47 and 12,679.90

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Solution

The fourth proportional to 23,290.90, 32,140.47 and 12,679.90 is: 17,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,290.90 : 32,140.47 = 12,679.90 : x
  2. Step 2: Convert to fraction form
    23,290.90/32,140.47 = 12,679.90/x
  3. Step 3: Cross multiply
    23,290.90x = 32,140.47 × 12,679.90
  4. Step 4: Simplify right side
    23,290.90x = 407,537,945.55
  5. Step 5: Solve for x
    x = 407,537,945.55/23,290.90
  6. Step 6: Final answer
    x = 17,497.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.