Home / 28,666.08-42,990.72-12,025.62

Finding the Fourth Proportional to 28,666.08, 42,990.72 and 12,025.62

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Solution

The fourth proportional to 28,666.08, 42,990.72 and 12,025.62 is: 18,034.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.08 : 42,990.72 = 12,025.62 : x
  2. Step 2: Convert to fraction form
    28,666.08/42,990.72 = 12,025.62/x
  3. Step 3: Cross multiply
    28,666.08x = 42,990.72 × 12,025.62
  4. Step 4: Simplify right side
    28,666.08x = 516,990,062.25
  5. Step 5: Solve for x
    x = 516,990,062.25/28,666.08
  6. Step 6: Final answer
    x = 18,034.91

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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.