Home / 28,384.20-42,576.30-25,475.40

Finding the Fourth Proportional to 28,384.20, 42,576.30 and 25,475.40

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Solution

The fourth proportional to 28,384.20, 42,576.30 and 25,475.40 is: 38,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.20 : 42,576.30 = 25,475.40 : x
  2. Step 2: Convert to fraction form
    28,384.20/42,576.30 = 25,475.40/x
  3. Step 3: Cross multiply
    28,384.20x = 42,576.30 × 25,475.40
  4. Step 4: Simplify right side
    28,384.20x = 1,084,648,273.02
  5. Step 5: Solve for x
    x = 1,084,648,273.02/28,384.20
  6. Step 6: Final answer
    x = 38,213.10

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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.