Home / 39,672.40-54,748.48-21,767.08

Finding the Fourth Proportional to 39,672.40, 54,748.48 and 21,767.08

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Solution

The fourth proportional to 39,672.40, 54,748.48 and 21,767.08 is: 30,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.40 : 54,748.48 = 21,767.08 : x
  2. Step 2: Convert to fraction form
    39,672.40/54,748.48 = 21,767.08/x
  3. Step 3: Cross multiply
    39,672.40x = 54,748.48 × 21,767.08
  4. Step 4: Simplify right side
    39,672.40x = 1,191,714,544.04
  5. Step 5: Solve for x
    x = 1,191,714,544.04/39,672.40
  6. Step 6: Final answer
    x = 30,038.88

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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.