Home / 25,281.55-34,889.88-15,213.16

Finding the Fourth Proportional to 25,281.55, 34,889.88 and 15,213.16

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Solution

The fourth proportional to 25,281.55, 34,889.88 and 15,213.16 is: 20,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,281.55 : 34,889.88 = 15,213.16 : x
  2. Step 2: Convert to fraction form
    25,281.55/34,889.88 = 15,213.16/x
  3. Step 3: Cross multiply
    25,281.55x = 34,889.88 × 15,213.16
  4. Step 4: Simplify right side
    25,281.55x = 530,785,326.82
  5. Step 5: Solve for x
    x = 530,785,326.82/25,281.55
  6. Step 6: Final answer
    x = 20,994.97

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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.