Home / 20,473.32-28,248.94-11,973.79

Finding the Fourth Proportional to 20,473.32, 28,248.94 and 11,973.79

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Solution

The fourth proportional to 20,473.32, 28,248.94 and 11,973.79 is: 16,521.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.32 : 28,248.94 = 11,973.79 : x
  2. Step 2: Convert to fraction form
    20,473.32/28,248.94 = 11,973.79/x
  3. Step 3: Cross multiply
    20,473.32x = 28,248.94 × 11,973.79
  4. Step 4: Simplify right side
    20,473.32x = 338,246,875.28
  5. Step 5: Solve for x
    x = 338,246,875.28/20,473.32
  6. Step 6: Final answer
    x = 16,521.35

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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.