Home / 18,888.24-28,337.76-5,740.32

Finding the Fourth Proportional to 18,888.24, 28,337.76 and 5,740.32

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Solution

The fourth proportional to 18,888.24, 28,337.76 and 5,740.32 is: 8,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.24 : 28,337.76 = 5,740.32 : x
  2. Step 2: Convert to fraction form
    18,888.24/28,337.76 = 5,740.32/x
  3. Step 3: Cross multiply
    18,888.24x = 28,337.76 × 5,740.32
  4. Step 4: Simplify right side
    18,888.24x = 162,667,810.48
  5. Step 5: Solve for x
    x = 162,667,810.48/18,888.24
  6. Step 6: Final answer
    x = 8,612.12

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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.