Home / 28,352.16-42,528.24-15,865.20

Finding the Fourth Proportional to 28,352.16, 42,528.24 and 15,865.20

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Solution

The fourth proportional to 28,352.16, 42,528.24 and 15,865.20 is: 23,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.16 : 42,528.24 = 15,865.20 : x
  2. Step 2: Convert to fraction form
    28,352.16/42,528.24 = 15,865.20/x
  3. Step 3: Cross multiply
    28,352.16x = 42,528.24 × 15,865.20
  4. Step 4: Simplify right side
    28,352.16x = 674,719,033.25
  5. Step 5: Solve for x
    x = 674,719,033.25/28,352.16
  6. Step 6: Final answer
    x = 23,797.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.