Home / 15,647.98-23,332.38-13,909.32

Finding the Fourth Proportional to 15,647.98, 23,332.38 and 13,909.32

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Solution

The fourth proportional to 15,647.98, 23,332.38 and 13,909.32 is: 20,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.98 : 23,332.38 = 13,909.32 : x
  2. Step 2: Convert to fraction form
    15,647.98/23,332.38 = 13,909.32/x
  3. Step 3: Cross multiply
    15,647.98x = 23,332.38 × 13,909.32
  4. Step 4: Simplify right side
    15,647.98x = 324,537,539.78
  5. Step 5: Solve for x
    x = 324,537,539.78/15,647.98
  6. Step 6: Final answer
    x = 20,739.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.