Home / 19,542.47-29,307.55-6,391.77

Finding the Fourth Proportional to 19,542.47, 29,307.55 and 6,391.77

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Solution

The fourth proportional to 19,542.47, 29,307.55 and 6,391.77 is: 9,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.47 : 29,307.55 = 6,391.77 : x
  2. Step 2: Convert to fraction form
    19,542.47/29,307.55 = 6,391.77/x
  3. Step 3: Cross multiply
    19,542.47x = 29,307.55 × 6,391.77
  4. Step 4: Simplify right side
    19,542.47x = 187,327,118.86
  5. Step 5: Solve for x
    x = 187,327,118.86/19,542.47
  6. Step 6: Final answer
    x = 9,585.64

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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.