Home / 27,860.68-38,448-15,285.40

Finding the Fourth Proportional to 27,860.68, 38,448 and 15,285.40

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Solution

The fourth proportional to 27,860.68, 38,448 and 15,285.40 is: 21,094.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.68 : 38,448 = 15,285.40 : x
  2. Step 2: Convert to fraction form
    27,860.68/38,448 = 15,285.40/x
  3. Step 3: Cross multiply
    27,860.68x = 38,448 × 15,285.40
  4. Step 4: Simplify right side
    27,860.68x = 587,693,059.20
  5. Step 5: Solve for x
    x = 587,693,059.20/27,860.68
  6. Step 6: Final answer
    x = 21,094.00

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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.