Home / 25,714.17-35,488.16-15,643.30

Finding the Fourth Proportional to 25,714.17, 35,488.16 and 15,643.30

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Solution

The fourth proportional to 25,714.17, 35,488.16 and 15,643.30 is: 21,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,714.17 : 35,488.16 = 15,643.30 : x
  2. Step 2: Convert to fraction form
    25,714.17/35,488.16 = 15,643.30/x
  3. Step 3: Cross multiply
    25,714.17x = 35,488.16 × 15,643.30
  4. Step 4: Simplify right side
    25,714.17x = 555,151,933.33
  5. Step 5: Solve for x
    x = 555,151,933.33/25,714.17
  6. Step 6: Final answer
    x = 21,589.34

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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.