Home / 20,498.69-28,272.47-15,463.73

Finding the Fourth Proportional to 20,498.69, 28,272.47 and 15,463.73

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Solution

The fourth proportional to 20,498.69, 28,272.47 and 15,463.73 is: 21,328.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.69 : 28,272.47 = 15,463.73 : x
  2. Step 2: Convert to fraction form
    20,498.69/28,272.47 = 15,463.73/x
  3. Step 3: Cross multiply
    20,498.69x = 28,272.47 × 15,463.73
  4. Step 4: Simplify right side
    20,498.69x = 437,197,623.83
  5. Step 5: Solve for x
    x = 437,197,623.83/20,498.69
  6. Step 6: Final answer
    x = 21,328.08

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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.