Home / 21,769.76-29,995.68-14,683.76

Finding the Fourth Proportional to 21,769.76, 29,995.68 and 14,683.76

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Solution

The fourth proportional to 21,769.76, 29,995.68 and 14,683.76 is: 20,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.76 : 29,995.68 = 14,683.76 : x
  2. Step 2: Convert to fraction form
    21,769.76/29,995.68 = 14,683.76/x
  3. Step 3: Cross multiply
    21,769.76x = 29,995.68 × 14,683.76
  4. Step 4: Simplify right side
    21,769.76x = 440,449,366.16
  5. Step 5: Solve for x
    x = 440,449,366.16/21,769.76
  6. Step 6: Final answer
    x = 20,232.16

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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.