Home / 26,187.20-39,280.80-25,798.40

Finding the Fourth Proportional to 26,187.20, 39,280.80 and 25,798.40

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Solution

The fourth proportional to 26,187.20, 39,280.80 and 25,798.40 is: 38,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.20 : 39,280.80 = 25,798.40 : x
  2. Step 2: Convert to fraction form
    26,187.20/39,280.80 = 25,798.40/x
  3. Step 3: Cross multiply
    26,187.20x = 39,280.80 × 25,798.40
  4. Step 4: Simplify right side
    26,187.20x = 1,013,381,790.72
  5. Step 5: Solve for x
    x = 1,013,381,790.72/26,187.20
  6. Step 6: Final answer
    x = 38,697.60

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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.