Home / 21,680.17-32,526.80-10,290.83

Finding the Fourth Proportional to 21,680.17, 32,526.80 and 10,290.83

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Solution

The fourth proportional to 21,680.17, 32,526.80 and 10,290.83 is: 15,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.17 : 32,526.80 = 10,290.83 : x
  2. Step 2: Convert to fraction form
    21,680.17/32,526.80 = 10,290.83/x
  3. Step 3: Cross multiply
    21,680.17x = 32,526.80 × 10,290.83
  4. Step 4: Simplify right side
    21,680.17x = 334,727,957.35
  5. Step 5: Solve for x
    x = 334,727,957.35/21,680.17
  6. Step 6: Final answer
    x = 15,439.36

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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.