Home / 20,764.02-31,127.52-7,613.32

Finding the Fourth Proportional to 20,764.02, 31,127.52 and 7,613.32

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Solution

The fourth proportional to 20,764.02, 31,127.52 and 7,613.32 is: 11,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.02 : 31,127.52 = 7,613.32 : x
  2. Step 2: Convert to fraction form
    20,764.02/31,127.52 = 7,613.32/x
  3. Step 3: Cross multiply
    20,764.02x = 31,127.52 × 7,613.32
  4. Step 4: Simplify right side
    20,764.02x = 236,983,692.75
  5. Step 5: Solve for x
    x = 236,983,692.75/20,764.02
  6. Step 6: Final answer
    x = 11,413.19

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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.