Home / 21,384.28-32,081.28-9,700.84

Finding the Fourth Proportional to 21,384.28, 32,081.28 and 9,700.84

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Solution

The fourth proportional to 21,384.28, 32,081.28 and 9,700.84 is: 14,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.28 : 32,081.28 = 9,700.84 : x
  2. Step 2: Convert to fraction form
    21,384.28/32,081.28 = 9,700.84/x
  3. Step 3: Cross multiply
    21,384.28x = 32,081.28 × 9,700.84
  4. Step 4: Simplify right side
    21,384.28x = 311,215,364.28
  5. Step 5: Solve for x
    x = 311,215,364.28/21,384.28
  6. Step 6: Final answer
    x = 14,553.46

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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.