Home / 39,909.68-55,075.37-22,915.04

Finding the Fourth Proportional to 39,909.68, 55,075.37 and 22,915.04

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Solution

The fourth proportional to 39,909.68, 55,075.37 and 22,915.04 is: 31,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.68 : 55,075.37 = 22,915.04 : x
  2. Step 2: Convert to fraction form
    39,909.68/55,075.37 = 22,915.04/x
  3. Step 3: Cross multiply
    39,909.68x = 55,075.37 × 22,915.04
  4. Step 4: Simplify right side
    39,909.68x = 1,262,053,916.61
  5. Step 5: Solve for x
    x = 1,262,053,916.61/39,909.68
  6. Step 6: Final answer
    x = 31,622.75

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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.