Home / 38,872.28-53,642.58-21,877.46

Finding the Fourth Proportional to 38,872.28, 53,642.58 and 21,877.46

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Solution

The fourth proportional to 38,872.28, 53,642.58 and 21,877.46 is: 30,190.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872.28 : 53,642.58 = 21,877.46 : x
  2. Step 2: Convert to fraction form
    38,872.28/53,642.58 = 21,877.46/x
  3. Step 3: Cross multiply
    38,872.28x = 53,642.58 × 21,877.46
  4. Step 4: Simplify right side
    38,872.28x = 1,173,563,398.25
  5. Step 5: Solve for x
    x = 1,173,563,398.25/38,872.28
  6. Step 6: Final answer
    x = 30,190.24

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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.