Home / 27,868.52-38,464.16-18,918.93

Finding the Fourth Proportional to 27,868.52, 38,464.16 and 18,918.93

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Solution

The fourth proportional to 27,868.52, 38,464.16 and 18,918.93 is: 26,111.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.52 : 38,464.16 = 18,918.93 : x
  2. Step 2: Convert to fraction form
    27,868.52/38,464.16 = 18,918.93/x
  3. Step 3: Cross multiply
    27,868.52x = 38,464.16 × 18,918.93
  4. Step 4: Simplify right side
    27,868.52x = 727,700,655.95
  5. Step 5: Solve for x
    x = 727,700,655.95/27,868.52
  6. Step 6: Final answer
    x = 26,111.93

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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.