Home / 28,243.22-38,976.05-15,497.66

Finding the Fourth Proportional to 28,243.22, 38,976.05 and 15,497.66

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Solution

The fourth proportional to 28,243.22, 38,976.05 and 15,497.66 is: 21,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.22 : 38,976.05 = 15,497.66 : x
  2. Step 2: Convert to fraction form
    28,243.22/38,976.05 = 15,497.66/x
  3. Step 3: Cross multiply
    28,243.22x = 38,976.05 × 15,497.66
  4. Step 4: Simplify right side
    28,243.22x = 604,037,707.23
  5. Step 5: Solve for x
    x = 604,037,707.23/28,243.22
  6. Step 6: Final answer
    x = 21,387.00

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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.