Home / 27,756.80-38,316.16-16,579.84

Finding the Fourth Proportional to 27,756.80, 38,316.16 and 16,579.84

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Solution

The fourth proportional to 27,756.80, 38,316.16 and 16,579.84 is: 22,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.80 : 38,316.16 = 16,579.84 : x
  2. Step 2: Convert to fraction form
    27,756.80/38,316.16 = 16,579.84/x
  3. Step 3: Cross multiply
    27,756.80x = 38,316.16 × 16,579.84
  4. Step 4: Simplify right side
    27,756.80x = 635,275,802.21
  5. Step 5: Solve for x
    x = 635,275,802.21/27,756.80
  6. Step 6: Final answer
    x = 22,887.21

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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.