Home / 39,359.43-54,316.64-21,454.45

Finding the Fourth Proportional to 39,359.43, 54,316.64 and 21,454.45

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Solution

The fourth proportional to 39,359.43, 54,316.64 and 21,454.45 is: 29,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359.43 : 54,316.64 = 21,454.45 : x
  2. Step 2: Convert to fraction form
    39,359.43/54,316.64 = 21,454.45/x
  3. Step 3: Cross multiply
    39,359.43x = 54,316.64 × 21,454.45
  4. Step 4: Simplify right side
    39,359.43x = 1,165,333,554.89
  5. Step 5: Solve for x
    x = 1,165,333,554.89/39,359.43
  6. Step 6: Final answer
    x = 29,607.48

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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.