Home / 28,242.14-42,362.19-8,520.19

Finding the Fourth Proportional to 28,242.14, 42,362.19 and 8,520.19

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Solution

The fourth proportional to 28,242.14, 42,362.19 and 8,520.19 is: 12,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.14 : 42,362.19 = 8,520.19 : x
  2. Step 2: Convert to fraction form
    28,242.14/42,362.19 = 8,520.19/x
  3. Step 3: Cross multiply
    28,242.14x = 42,362.19 × 8,520.19
  4. Step 4: Simplify right side
    28,242.14x = 360,933,801.71
  5. Step 5: Solve for x
    x = 360,933,801.71/28,242.14
  6. Step 6: Final answer
    x = 12,779.97

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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.