Home / 25,500.81-35,189.40-15,434.84

Finding the Fourth Proportional to 25,500.81, 35,189.40 and 15,434.84

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Solution

The fourth proportional to 25,500.81, 35,189.40 and 15,434.84 is: 21,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,500.81 : 35,189.40 = 15,434.84 : x
  2. Step 2: Convert to fraction form
    25,500.81/35,189.40 = 15,434.84/x
  3. Step 3: Cross multiply
    25,500.81x = 35,189.40 × 15,434.84
  4. Step 4: Simplify right side
    25,500.81x = 543,142,758.70
  5. Step 5: Solve for x
    x = 543,142,758.70/25,500.81
  6. Step 6: Final answer
    x = 21,299.04

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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.