Home / 25,388.80-35,031.36-14,208.64

Finding the Fourth Proportional to 25,388.80, 35,031.36 and 14,208.64

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Solution

The fourth proportional to 25,388.80, 35,031.36 and 14,208.64 is: 19,605.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.80 : 35,031.36 = 14,208.64 : x
  2. Step 2: Convert to fraction form
    25,388.80/35,031.36 = 14,208.64/x
  3. Step 3: Cross multiply
    25,388.80x = 35,031.36 × 14,208.64
  4. Step 4: Simplify right side
    25,388.80x = 497,747,982.95
  5. Step 5: Solve for x
    x = 497,747,982.95/25,388.80
  6. Step 6: Final answer
    x = 19,605.02

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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.