Home / 20,238.47-30,203.14-18,024.13

Finding the Fourth Proportional to 20,238.47, 30,203.14 and 18,024.13

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Solution

The fourth proportional to 20,238.47, 30,203.14 and 18,024.13 is: 26,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.47 : 30,203.14 = 18,024.13 : x
  2. Step 2: Convert to fraction form
    20,238.47/30,203.14 = 18,024.13/x
  3. Step 3: Cross multiply
    20,238.47x = 30,203.14 × 18,024.13
  4. Step 4: Simplify right side
    20,238.47x = 544,385,201.20
  5. Step 5: Solve for x
    x = 544,385,201.20/20,238.47
  6. Step 6: Final answer
    x = 26,898.54

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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.