Home / 23,389.20-32,220.56-20,021.20

Finding the Fourth Proportional to 23,389.20, 32,220.56 and 20,021.20

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Solution

The fourth proportional to 23,389.20, 32,220.56 and 20,021.20 is: 27,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,389.20 : 32,220.56 = 20,021.20 : x
  2. Step 2: Convert to fraction form
    23,389.20/32,220.56 = 20,021.20/x
  3. Step 3: Cross multiply
    23,389.20x = 32,220.56 × 20,021.20
  4. Step 4: Simplify right side
    23,389.20x = 645,094,275.87
  5. Step 5: Solve for x
    x = 645,094,275.87/23,389.20
  6. Step 6: Final answer
    x = 27,580.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.