Home / 27,621.48-38,116.18-15,684.52

Finding the Fourth Proportional to 27,621.48, 38,116.18 and 15,684.52

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Solution

The fourth proportional to 27,621.48, 38,116.18 and 15,684.52 is: 21,643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.48 : 38,116.18 = 15,684.52 : x
  2. Step 2: Convert to fraction form
    27,621.48/38,116.18 = 15,684.52/x
  3. Step 3: Cross multiply
    27,621.48x = 38,116.18 × 15,684.52
  4. Step 4: Simplify right side
    27,621.48x = 597,833,987.53
  5. Step 5: Solve for x
    x = 597,833,987.53/27,621.48
  6. Step 6: Final answer
    x = 21,643.81

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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.