Home / 27,854.13-38,435.00-15,756.26

Finding the Fourth Proportional to 27,854.13, 38,435.00 and 15,756.26

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Solution

The fourth proportional to 27,854.13, 38,435.00 and 15,756.26 is: 21,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.13 : 38,435.00 = 15,756.26 : x
  2. Step 2: Convert to fraction form
    27,854.13/38,435.00 = 15,756.26/x
  3. Step 3: Cross multiply
    27,854.13x = 38,435.00 × 15,756.26
  4. Step 4: Simplify right side
    27,854.13x = 605,591,870.41
  5. Step 5: Solve for x
    x = 605,591,870.41/27,854.13
  6. Step 6: Final answer
    x = 21,741.55

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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.