Home / 25,239.31-34,830.48-13,909.21

Finding the Fourth Proportional to 25,239.31, 34,830.48 and 13,909.21

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Solution

The fourth proportional to 25,239.31, 34,830.48 and 13,909.21 is: 19,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,239.31 : 34,830.48 = 13,909.21 : x
  2. Step 2: Convert to fraction form
    25,239.31/34,830.48 = 13,909.21/x
  3. Step 3: Cross multiply
    25,239.31x = 34,830.48 × 13,909.21
  4. Step 4: Simplify right side
    25,239.31x = 484,464,391.17
  5. Step 5: Solve for x
    x = 484,464,391.17/25,239.31
  6. Step 6: Final answer
    x = 19,194.84

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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.