Home / 20,703.47-30,959.82-15,376.71

Finding the Fourth Proportional to 20,703.47, 30,959.82 and 15,376.71

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Solution

The fourth proportional to 20,703.47, 30,959.82 and 15,376.71 is: 22,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.47 : 30,959.82 = 15,376.71 : x
  2. Step 2: Convert to fraction form
    20,703.47/30,959.82 = 15,376.71/x
  3. Step 3: Cross multiply
    20,703.47x = 30,959.82 × 15,376.71
  4. Step 4: Simplify right side
    20,703.47x = 476,060,173.79
  5. Step 5: Solve for x
    x = 476,060,173.79/20,703.47
  6. Step 6: Final answer
    x = 22,994.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.