Home / 39,354.47-54,307.59-21,449.09

Finding the Fourth Proportional to 39,354.47, 54,307.59 and 21,449.09

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Solution

The fourth proportional to 39,354.47, 54,307.59 and 21,449.09 is: 29,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,354.47 : 54,307.59 = 21,449.09 : x
  2. Step 2: Convert to fraction form
    39,354.47/54,307.59 = 21,449.09/x
  3. Step 3: Cross multiply
    39,354.47x = 54,307.59 × 21,449.09
  4. Step 4: Simplify right side
    39,354.47x = 1,164,848,385.59
  5. Step 5: Solve for x
    x = 1,164,848,385.59/39,354.47
  6. Step 6: Final answer
    x = 29,598.88

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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.