Home / 25,007.20-34,509.78-13,829.20

Finding the Fourth Proportional to 25,007.20, 34,509.78 and 13,829.20

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Solution

The fourth proportional to 25,007.20, 34,509.78 and 13,829.20 is: 19,084.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,007.20 : 34,509.78 = 13,829.20 : x
  2. Step 2: Convert to fraction form
    25,007.20/34,509.78 = 13,829.20/x
  3. Step 3: Cross multiply
    25,007.20x = 34,509.78 × 13,829.20
  4. Step 4: Simplify right side
    25,007.20x = 477,242,649.58
  5. Step 5: Solve for x
    x = 477,242,649.58/25,007.20
  6. Step 6: Final answer
    x = 19,084.21

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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.