Home / 25,645.78-35,391.90-14,315.04

Finding the Fourth Proportional to 25,645.78, 35,391.90 and 14,315.04

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Solution

The fourth proportional to 25,645.78, 35,391.90 and 14,315.04 is: 19,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.78 : 35,391.90 = 14,315.04 : x
  2. Step 2: Convert to fraction form
    25,645.78/35,391.90 = 14,315.04/x
  3. Step 3: Cross multiply
    25,645.78x = 35,391.90 × 14,315.04
  4. Step 4: Simplify right side
    25,645.78x = 506,636,464.18
  5. Step 5: Solve for x
    x = 506,636,464.18/25,645.78
  6. Step 6: Final answer
    x = 19,755.16

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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.