Home / 39,844.15-54,984.48-21,938.69

Finding the Fourth Proportional to 39,844.15, 54,984.48 and 21,938.69

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Solution

The fourth proportional to 39,844.15, 54,984.48 and 21,938.69 is: 30,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.15 : 54,984.48 = 21,938.69 : x
  2. Step 2: Convert to fraction form
    39,844.15/54,984.48 = 21,938.69/x
  3. Step 3: Cross multiply
    39,844.15x = 54,984.48 × 21,938.69
  4. Step 4: Simplify right side
    39,844.15x = 1,206,287,461.53
  5. Step 5: Solve for x
    x = 1,206,287,461.53/39,844.15
  6. Step 6: Final answer
    x = 30,275.15

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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.