Home / 28,600.85-42,907.01-9,881.57

Finding the Fourth Proportional to 28,600.85, 42,907.01 and 9,881.57

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Solution

The fourth proportional to 28,600.85, 42,907.01 and 9,881.57 is: 14,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.85 : 42,907.01 = 9,881.57 : x
  2. Step 2: Convert to fraction form
    28,600.85/42,907.01 = 9,881.57/x
  3. Step 3: Cross multiply
    28,600.85x = 42,907.01 × 9,881.57
  4. Step 4: Simplify right side
    28,600.85x = 423,988,358.86
  5. Step 5: Solve for x
    x = 423,988,358.86/28,600.85
  6. Step 6: Final answer
    x = 14,824.33

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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.