Home / 25,805.49-38,708.30-7,085.79

Finding the Fourth Proportional to 25,805.49, 38,708.30 and 7,085.79

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Solution

The fourth proportional to 25,805.49, 38,708.30 and 7,085.79 is: 10,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,805.49 : 38,708.30 = 7,085.79 : x
  2. Step 2: Convert to fraction form
    25,805.49/38,708.30 = 7,085.79/x
  3. Step 3: Cross multiply
    25,805.49x = 38,708.30 × 7,085.79
  4. Step 4: Simplify right side
    25,805.49x = 274,278,885.06
  5. Step 5: Solve for x
    x = 274,278,885.06/25,805.49
  6. Step 6: Final answer
    x = 10,628.70

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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.