Home / 28,372.75-42,559.07-17,130.32

Finding the Fourth Proportional to 28,372.75, 42,559.07 and 17,130.32

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Solution

The fourth proportional to 28,372.75, 42,559.07 and 17,130.32 is: 25,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.75 : 42,559.07 = 17,130.32 : x
  2. Step 2: Convert to fraction form
    28,372.75/42,559.07 = 17,130.32/x
  3. Step 3: Cross multiply
    28,372.75x = 42,559.07 × 17,130.32
  4. Step 4: Simplify right side
    28,372.75x = 729,050,488.00
  5. Step 5: Solve for x
    x = 729,050,488.00/28,372.75
  6. Step 6: Final answer
    x = 25,695.45

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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.