Home / 22,130.49-30,522.10-20,285.52

Finding the Fourth Proportional to 22,130.49, 30,522.10 and 20,285.52

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Solution

The fourth proportional to 22,130.49, 30,522.10 and 20,285.52 is: 27,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.49 : 30,522.10 = 20,285.52 : x
  2. Step 2: Convert to fraction form
    22,130.49/30,522.10 = 20,285.52/x
  3. Step 3: Cross multiply
    22,130.49x = 30,522.10 × 20,285.52
  4. Step 4: Simplify right side
    22,130.49x = 619,156,542.86
  5. Step 5: Solve for x
    x = 619,156,542.86/22,130.49
  6. Step 6: Final answer
    x = 27,977.53

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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.