Home / 20,158.02-30,209.43-15,223.62

Finding the Fourth Proportional to 20,158.02, 30,209.43 and 15,223.62

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Solution

The fourth proportional to 20,158.02, 30,209.43 and 15,223.62 is: 22,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.02 : 30,209.43 = 15,223.62 : x
  2. Step 2: Convert to fraction form
    20,158.02/30,209.43 = 15,223.62/x
  3. Step 3: Cross multiply
    20,158.02x = 30,209.43 × 15,223.62
  4. Step 4: Simplify right side
    20,158.02x = 459,896,882.74
  5. Step 5: Solve for x
    x = 459,896,882.74/20,158.02
  6. Step 6: Final answer
    x = 22,814.59

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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.