Home / 25,011.40-34,514.34-13,678.64

Finding the Fourth Proportional to 25,011.40, 34,514.34 and 13,678.64

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Solution

The fourth proportional to 25,011.40, 34,514.34 and 13,678.64 is: 18,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.40 : 34,514.34 = 13,678.64 : x
  2. Step 2: Convert to fraction form
    25,011.40/34,514.34 = 13,678.64/x
  3. Step 3: Cross multiply
    25,011.40x = 34,514.34 × 13,678.64
  4. Step 4: Simplify right side
    25,011.40x = 472,109,231.70
  5. Step 5: Solve for x
    x = 472,109,231.70/25,011.40
  6. Step 6: Final answer
    x = 18,875.76

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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.