Home / 20,725.32-31,077.02-15,192.20

Finding the Fourth Proportional to 20,725.32, 31,077.02 and 15,192.20

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Solution

The fourth proportional to 20,725.32, 31,077.02 and 15,192.20 is: 22,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.32 : 31,077.02 = 15,192.20 : x
  2. Step 2: Convert to fraction form
    20,725.32/31,077.02 = 15,192.20/x
  3. Step 3: Cross multiply
    20,725.32x = 31,077.02 × 15,192.20
  4. Step 4: Simplify right side
    20,725.32x = 472,128,303.24
  5. Step 5: Solve for x
    x = 472,128,303.24/20,725.32
  6. Step 6: Final answer
    x = 22,780.27

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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.