Home / 28,114.56-42,166.98-10,581.30

Finding the Fourth Proportional to 28,114.56, 42,166.98 and 10,581.30

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Solution

The fourth proportional to 28,114.56, 42,166.98 and 10,581.30 is: 15,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.56 : 42,166.98 = 10,581.30 : x
  2. Step 2: Convert to fraction form
    28,114.56/42,166.98 = 10,581.30/x
  3. Step 3: Cross multiply
    28,114.56x = 42,166.98 × 10,581.30
  4. Step 4: Simplify right side
    28,114.56x = 446,181,465.47
  5. Step 5: Solve for x
    x = 446,181,465.47/28,114.56
  6. Step 6: Final answer
    x = 15,870.12

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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.