Home / 28,093.42-42,140.11-8,371.47

Finding the Fourth Proportional to 28,093.42, 42,140.11 and 8,371.47

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Solution

The fourth proportional to 28,093.42, 42,140.11 and 8,371.47 is: 12,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.42 : 42,140.11 = 8,371.47 : x
  2. Step 2: Convert to fraction form
    28,093.42/42,140.11 = 8,371.47/x
  3. Step 3: Cross multiply
    28,093.42x = 42,140.11 × 8,371.47
  4. Step 4: Simplify right side
    28,093.42x = 352,774,666.66
  5. Step 5: Solve for x
    x = 352,774,666.66/28,093.42
  6. Step 6: Final answer
    x = 12,557.20

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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.