Home / 27,643.18-38,146.46-15,543.32

Finding the Fourth Proportional to 27,643.18, 38,146.46 and 15,543.32

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Solution

The fourth proportional to 27,643.18, 38,146.46 and 15,543.32 is: 21,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.18 : 38,146.46 = 15,543.32 : x
  2. Step 2: Convert to fraction form
    27,643.18/38,146.46 = 15,543.32/x
  3. Step 3: Cross multiply
    27,643.18x = 38,146.46 × 15,543.32
  4. Step 4: Simplify right side
    27,643.18x = 592,922,366.20
  5. Step 5: Solve for x
    x = 592,922,366.20/27,643.18
  6. Step 6: Final answer
    x = 21,449.14

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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.