Home / 28,498.52-39,341.79-20,018.66

Finding the Fourth Proportional to 28,498.52, 39,341.79 and 20,018.66

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Solution

The fourth proportional to 28,498.52, 39,341.79 and 20,018.66 is: 27,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.52 : 39,341.79 = 20,018.66 : x
  2. Step 2: Convert to fraction form
    28,498.52/39,341.79 = 20,018.66/x
  3. Step 3: Cross multiply
    28,498.52x = 39,341.79 × 20,018.66
  4. Step 4: Simplify right side
    28,498.52x = 787,569,917.80
  5. Step 5: Solve for x
    x = 787,569,917.80/28,498.52
  6. Step 6: Final answer
    x = 27,635.47

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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.