Home / 20,223.75-30,339.02-9,130.20

Finding the Fourth Proportional to 20,223.75, 30,339.02 and 9,130.20

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Solution

The fourth proportional to 20,223.75, 30,339.02 and 9,130.20 is: 13,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.75 : 30,339.02 = 9,130.20 : x
  2. Step 2: Convert to fraction form
    20,223.75/30,339.02 = 9,130.20/x
  3. Step 3: Cross multiply
    20,223.75x = 30,339.02 × 9,130.20
  4. Step 4: Simplify right side
    20,223.75x = 277,001,320.40
  5. Step 5: Solve for x
    x = 277,001,320.40/20,223.75
  6. Step 6: Final answer
    x = 13,696.83

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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.