Home / 38,421.04-53,020.56-21,654.04

Finding the Fourth Proportional to 38,421.04, 53,020.56 and 21,654.04

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Solution

The fourth proportional to 38,421.04, 53,020.56 and 21,654.04 is: 29,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.04 : 53,020.56 = 21,654.04 : x
  2. Step 2: Convert to fraction form
    38,421.04/53,020.56 = 21,654.04/x
  3. Step 3: Cross multiply
    38,421.04x = 53,020.56 × 21,654.04
  4. Step 4: Simplify right side
    38,421.04x = 1,148,109,327.06
  5. Step 5: Solve for x
    x = 1,148,109,327.06/38,421.04
  6. Step 6: Final answer
    x = 29,882.31

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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.