Home / 28,907.28-39,886.02-18,293.04

Finding the Fourth Proportional to 28,907.28, 39,886.02 and 18,293.04

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Solution

The fourth proportional to 28,907.28, 39,886.02 and 18,293.04 is: 25,240.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.28 : 39,886.02 = 18,293.04 : x
  2. Step 2: Convert to fraction form
    28,907.28/39,886.02 = 18,293.04/x
  3. Step 3: Cross multiply
    28,907.28x = 39,886.02 × 18,293.04
  4. Step 4: Simplify right side
    28,907.28x = 729,636,559.30
  5. Step 5: Solve for x
    x = 729,636,559.30/28,907.28
  6. Step 6: Final answer
    x = 25,240.58

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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.