Home / 19,799.49-27,320.74-15,776.52

Finding the Fourth Proportional to 19,799.49, 27,320.74 and 15,776.52

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Solution

The fourth proportional to 19,799.49, 27,320.74 and 15,776.52 is: 21,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.49 : 27,320.74 = 15,776.52 : x
  2. Step 2: Convert to fraction form
    19,799.49/27,320.74 = 15,776.52/x
  3. Step 3: Cross multiply
    19,799.49x = 27,320.74 × 15,776.52
  4. Step 4: Simplify right side
    19,799.49x = 431,026,301.55
  5. Step 5: Solve for x
    x = 431,026,301.55/19,799.49
  6. Step 6: Final answer
    x = 21,769.57

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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.