Home / 25,305.84-34,908.08-15,747.30

Finding the Fourth Proportional to 25,305.84, 34,908.08 and 15,747.30

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Solution

The fourth proportional to 25,305.84, 34,908.08 and 15,747.30 is: 21,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.84 : 34,908.08 = 15,747.30 : x
  2. Step 2: Convert to fraction form
    25,305.84/34,908.08 = 15,747.30/x
  3. Step 3: Cross multiply
    25,305.84x = 34,908.08 × 15,747.30
  4. Step 4: Simplify right side
    25,305.84x = 549,707,929.45
  5. Step 5: Solve for x
    x = 549,707,929.45/25,305.84
  6. Step 6: Final answer
    x = 21,722.57

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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.