Home / 25,513.72-35,203.48-15,440.15

Finding the Fourth Proportional to 25,513.72, 35,203.48 and 15,440.15

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Solution

The fourth proportional to 25,513.72, 35,203.48 and 15,440.15 is: 21,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,513.72 : 35,203.48 = 15,440.15 : x
  2. Step 2: Convert to fraction form
    25,513.72/35,203.48 = 15,440.15/x
  3. Step 3: Cross multiply
    25,513.72x = 35,203.48 × 15,440.15
  4. Step 4: Simplify right side
    25,513.72x = 543,547,061.13
  5. Step 5: Solve for x
    x = 543,547,061.13/25,513.72
  6. Step 6: Final answer
    x = 21,304.11

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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.