Home / 28,263.10-42,436.28-15,807.54

Finding the Fourth Proportional to 28,263.10, 42,436.28 and 15,807.54

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Solution

The fourth proportional to 28,263.10, 42,436.28 and 15,807.54 is: 23,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.10 : 42,436.28 = 15,807.54 : x
  2. Step 2: Convert to fraction form
    28,263.10/42,436.28 = 15,807.54/x
  3. Step 3: Cross multiply
    28,263.10x = 42,436.28 × 15,807.54
  4. Step 4: Simplify right side
    28,263.10x = 670,813,193.55
  5. Step 5: Solve for x
    x = 670,813,193.55/28,263.10
  6. Step 6: Final answer
    x = 23,734.59

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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.