Home / 25,255.52-34,838.34-15,807.68

Finding the Fourth Proportional to 25,255.52, 34,838.34 and 15,807.68

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Solution

The fourth proportional to 25,255.52, 34,838.34 and 15,807.68 is: 21,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,255.52 : 34,838.34 = 15,807.68 : x
  2. Step 2: Convert to fraction form
    25,255.52/34,838.34 = 15,807.68/x
  3. Step 3: Cross multiply
    25,255.52x = 34,838.34 × 15,807.68
  4. Step 4: Simplify right side
    25,255.52x = 550,713,156.26
  5. Step 5: Solve for x
    x = 550,713,156.26/25,255.52
  6. Step 6: Final answer
    x = 21,805.66

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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.