Home / 28,445.25-39,253.01-15,867.57

Finding the Fourth Proportional to 28,445.25, 39,253.01 and 15,867.57

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Solution

The fourth proportional to 28,445.25, 39,253.01 and 15,867.57 is: 21,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.25 : 39,253.01 = 15,867.57 : x
  2. Step 2: Convert to fraction form
    28,445.25/39,253.01 = 15,867.57/x
  3. Step 3: Cross multiply
    28,445.25x = 39,253.01 × 15,867.57
  4. Step 4: Simplify right side
    28,445.25x = 622,849,883.89
  5. Step 5: Solve for x
    x = 622,849,883.89/28,445.25
  6. Step 6: Final answer
    x = 21,896.45

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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.