Home / 25,576.16-38,313.20-20,320.08

Finding the Fourth Proportional to 25,576.16, 38,313.20 and 20,320.08

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Solution

The fourth proportional to 25,576.16, 38,313.20 and 20,320.08 is: 30,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,576.16 : 38,313.20 = 20,320.08 : x
  2. Step 2: Convert to fraction form
    25,576.16/38,313.20 = 20,320.08/x
  3. Step 3: Cross multiply
    25,576.16x = 38,313.20 × 20,320.08
  4. Step 4: Simplify right side
    25,576.16x = 778,527,289.06
  5. Step 5: Solve for x
    x = 778,527,289.06/25,576.16
  6. Step 6: Final answer
    x = 30,439.57

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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.