Home / 25,117.70-34,639.89-18,759.69

Finding the Fourth Proportional to 25,117.70, 34,639.89 and 18,759.69

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Solution

The fourth proportional to 25,117.70, 34,639.89 and 18,759.69 is: 25,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,117.70 : 34,639.89 = 18,759.69 : x
  2. Step 2: Convert to fraction form
    25,117.70/34,639.89 = 18,759.69/x
  3. Step 3: Cross multiply
    25,117.70x = 34,639.89 × 18,759.69
  4. Step 4: Simplify right side
    25,117.70x = 649,833,598.03
  5. Step 5: Solve for x
    x = 649,833,598.03/25,117.70
  6. Step 6: Final answer
    x = 25,871.54

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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.