Home / 28,107.55-42,140.57-17,011.80

Finding the Fourth Proportional to 28,107.55, 42,140.57 and 17,011.80

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Solution

The fourth proportional to 28,107.55, 42,140.57 and 17,011.80 is: 25,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.55 : 42,140.57 = 17,011.80 : x
  2. Step 2: Convert to fraction form
    28,107.55/42,140.57 = 17,011.80/x
  3. Step 3: Cross multiply
    28,107.55x = 42,140.57 × 17,011.80
  4. Step 4: Simplify right side
    28,107.55x = 716,886,948.73
  5. Step 5: Solve for x
    x = 716,886,948.73/28,107.55
  6. Step 6: Final answer
    x = 25,505.14

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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.