Home / 28,163.16-38,854.08-19,663.02

Finding the Fourth Proportional to 28,163.16, 38,854.08 and 19,663.02

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Solution

The fourth proportional to 28,163.16, 38,854.08 and 19,663.02 is: 27,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.16 : 38,854.08 = 19,663.02 : x
  2. Step 2: Convert to fraction form
    28,163.16/38,854.08 = 19,663.02/x
  3. Step 3: Cross multiply
    28,163.16x = 38,854.08 × 19,663.02
  4. Step 4: Simplify right side
    28,163.16x = 763,988,552.12
  5. Step 5: Solve for x
    x = 763,988,552.12/28,163.16
  6. Step 6: Final answer
    x = 27,127.23

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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.