Home / 20,633.04-28,471.88-12,248.08

Finding the Fourth Proportional to 20,633.04, 28,471.88 and 12,248.08

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Solution

The fourth proportional to 20,633.04, 28,471.88 and 12,248.08 is: 16,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.04 : 28,471.88 = 12,248.08 : x
  2. Step 2: Convert to fraction form
    20,633.04/28,471.88 = 12,248.08/x
  3. Step 3: Cross multiply
    20,633.04x = 28,471.88 × 12,248.08
  4. Step 4: Simplify right side
    20,633.04x = 348,725,863.99
  5. Step 5: Solve for x
    x = 348,725,863.99/20,633.04
  6. Step 6: Final answer
    x = 16,901.33

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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.