Home / 20,238.02-30,360.69-9,149.93

Finding the Fourth Proportional to 20,238.02, 30,360.69 and 9,149.93

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Solution

The fourth proportional to 20,238.02, 30,360.69 and 9,149.93 is: 13,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.02 : 30,360.69 = 9,149.93 : x
  2. Step 2: Convert to fraction form
    20,238.02/30,360.69 = 9,149.93/x
  3. Step 3: Cross multiply
    20,238.02x = 30,360.69 × 9,149.93
  4. Step 4: Simplify right side
    20,238.02x = 277,798,142.50
  5. Step 5: Solve for x
    x = 277,798,142.50/20,238.02
  6. Step 6: Final answer
    x = 13,726.55

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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.