Home / 21,506.32-29,678.70-12,074.92

Finding the Fourth Proportional to 21,506.32, 29,678.70 and 12,074.92

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Solution

The fourth proportional to 21,506.32, 29,678.70 and 12,074.92 is: 16,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,506.32 : 29,678.70 = 12,074.92 : x
  2. Step 2: Convert to fraction form
    21,506.32/29,678.70 = 12,074.92/x
  3. Step 3: Cross multiply
    21,506.32x = 29,678.70 × 12,074.92
  4. Step 4: Simplify right side
    21,506.32x = 358,367,928.20
  5. Step 5: Solve for x
    x = 358,367,928.20/21,506.32
  6. Step 6: Final answer
    x = 16,663.38

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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.