Home / 19,769.40-27,281.53-10,816.80

Finding the Fourth Proportional to 19,769.40, 27,281.53 and 10,816.80

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Solution

The fourth proportional to 19,769.40, 27,281.53 and 10,816.80 is: 14,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.40 : 27,281.53 = 10,816.80 : x
  2. Step 2: Convert to fraction form
    19,769.40/27,281.53 = 10,816.80/x
  3. Step 3: Cross multiply
    19,769.40x = 27,281.53 × 10,816.80
  4. Step 4: Simplify right side
    19,769.40x = 295,098,853.70
  5. Step 5: Solve for x
    x = 295,098,853.70/19,769.40
  6. Step 6: Final answer
    x = 14,927.05

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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.