Home / 25,576.17-35,280.98-21,290.87

Finding the Fourth Proportional to 25,576.17, 35,280.98 and 21,290.87

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Solution

The fourth proportional to 25,576.17, 35,280.98 and 21,290.87 is: 29,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,576.17 : 35,280.98 = 21,290.87 : x
  2. Step 2: Convert to fraction form
    25,576.17/35,280.98 = 21,290.87/x
  3. Step 3: Cross multiply
    25,576.17x = 35,280.98 × 21,290.87
  4. Step 4: Simplify right side
    25,576.17x = 751,162,475.79
  5. Step 5: Solve for x
    x = 751,162,475.79/25,576.17
  6. Step 6: Final answer
    x = 29,369.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.