Home / 39,112.47-53,974.95-21,207.42

Finding the Fourth Proportional to 39,112.47, 53,974.95 and 21,207.42

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Solution

The fourth proportional to 39,112.47, 53,974.95 and 21,207.42 is: 29,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112.47 : 53,974.95 = 21,207.42 : x
  2. Step 2: Convert to fraction form
    39,112.47/53,974.95 = 21,207.42/x
  3. Step 3: Cross multiply
    39,112.47x = 53,974.95 × 21,207.42
  4. Step 4: Simplify right side
    39,112.47x = 1,144,669,434.13
  5. Step 5: Solve for x
    x = 1,144,669,434.13/39,112.47
  6. Step 6: Final answer
    x = 29,266.10

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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.