Home / 27,885.16-38,496.52-21,497.75

Finding the Fourth Proportional to 27,885.16, 38,496.52 and 21,497.75

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Solution

The fourth proportional to 27,885.16, 38,496.52 and 21,497.75 is: 29,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.16 : 38,496.52 = 21,497.75 : x
  2. Step 2: Convert to fraction form
    27,885.16/38,496.52 = 21,497.75/x
  3. Step 3: Cross multiply
    27,885.16x = 38,496.52 × 21,497.75
  4. Step 4: Simplify right side
    27,885.16x = 827,588,637.20
  5. Step 5: Solve for x
    x = 827,588,637.20/27,885.16
  6. Step 6: Final answer
    x = 29,678.46

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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.