Home / 27,435.75-37,862.96-15,498.78

Finding the Fourth Proportional to 27,435.75, 37,862.96 and 15,498.78

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Solution

The fourth proportional to 27,435.75, 37,862.96 and 15,498.78 is: 21,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,435.75 : 37,862.96 = 15,498.78 : x
  2. Step 2: Convert to fraction form
    27,435.75/37,862.96 = 15,498.78/x
  3. Step 3: Cross multiply
    27,435.75x = 37,862.96 × 15,498.78
  4. Step 4: Simplify right side
    27,435.75x = 586,829,609.69
  5. Step 5: Solve for x
    x = 586,829,609.69/27,435.75
  6. Step 6: Final answer
    x = 21,389.23

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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.