Home / 28,465.99-42,641.87-26,140.78

Finding the Fourth Proportional to 28,465.99, 42,641.87 and 26,140.78

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Solution

The fourth proportional to 28,465.99, 42,641.87 and 26,140.78 is: 39,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.99 : 42,641.87 = 26,140.78 : x
  2. Step 2: Convert to fraction form
    28,465.99/42,641.87 = 26,140.78/x
  3. Step 3: Cross multiply
    28,465.99x = 42,641.87 × 26,140.78
  4. Step 4: Simplify right side
    28,465.99x = 1,114,691,611.75
  5. Step 5: Solve for x
    x = 1,114,691,611.75/28,465.99
  6. Step 6: Final answer
    x = 39,158.72

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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.