Home / 32,872.23-45,357.30-20,128.32

Finding the Fourth Proportional to 32,872.23, 45,357.30 and 20,128.32

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Solution

The fourth proportional to 32,872.23, 45,357.30 and 20,128.32 is: 27,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,872.23 : 45,357.30 = 20,128.32 : x
  2. Step 2: Convert to fraction form
    32,872.23/45,357.30 = 20,128.32/x
  3. Step 3: Cross multiply
    32,872.23x = 45,357.30 × 20,128.32
  4. Step 4: Simplify right side
    32,872.23x = 912,966,248.74
  5. Step 5: Solve for x
    x = 912,966,248.74/32,872.23
  6. Step 6: Final answer
    x = 27,773.18

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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.