Home / 15,319.91-21,125.90-14,426.97

Finding the Fourth Proportional to 15,319.91, 21,125.90 and 14,426.97

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Solution

The fourth proportional to 15,319.91, 21,125.90 and 14,426.97 is: 19,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.91 : 21,125.90 = 14,426.97 : x
  2. Step 2: Convert to fraction form
    15,319.91/21,125.90 = 14,426.97/x
  3. Step 3: Cross multiply
    15,319.91x = 21,125.90 × 14,426.97
  4. Step 4: Simplify right side
    15,319.91x = 304,782,653.39
  5. Step 5: Solve for x
    x = 304,782,653.39/15,319.91
  6. Step 6: Final answer
    x = 19,894.55

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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.