Home / 28,282.08-38,988.72-19,872.48

Finding the Fourth Proportional to 28,282.08, 38,988.72 and 19,872.48

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Solution

The fourth proportional to 28,282.08, 38,988.72 and 19,872.48 is: 27,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.08 : 38,988.72 = 19,872.48 : x
  2. Step 2: Convert to fraction form
    28,282.08/38,988.72 = 19,872.48/x
  3. Step 3: Cross multiply
    28,282.08x = 38,988.72 × 19,872.48
  4. Step 4: Simplify right side
    28,282.08x = 774,802,558.43
  5. Step 5: Solve for x
    x = 774,802,558.43/28,282.08
  6. Step 6: Final answer
    x = 27,395.53

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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.