Home / 28,145.40-42,218.10-26,532.60

Finding the Fourth Proportional to 28,145.40, 42,218.10 and 26,532.60

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Solution

The fourth proportional to 28,145.40, 42,218.10 and 26,532.60 is: 39,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.40 : 42,218.10 = 26,532.60 : x
  2. Step 2: Convert to fraction form
    28,145.40/42,218.10 = 26,532.60/x
  3. Step 3: Cross multiply
    28,145.40x = 42,218.10 × 26,532.60
  4. Step 4: Simplify right side
    28,145.40x = 1,120,155,960.06
  5. Step 5: Solve for x
    x = 1,120,155,960.06/28,145.40
  6. Step 6: Final answer
    x = 39,798.90

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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.