Home / 28,721.84-39,626.34-17,959.34

Finding the Fourth Proportional to 28,721.84, 39,626.34 and 17,959.34

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Solution

The fourth proportional to 28,721.84, 39,626.34 and 17,959.34 is: 24,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.84 : 39,626.34 = 17,959.34 : x
  2. Step 2: Convert to fraction form
    28,721.84/39,626.34 = 17,959.34/x
  3. Step 3: Cross multiply
    28,721.84x = 39,626.34 × 17,959.34
  4. Step 4: Simplify right side
    28,721.84x = 711,662,913.02
  5. Step 5: Solve for x
    x = 711,662,913.02/28,721.84
  6. Step 6: Final answer
    x = 24,777.76

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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.