Home / 21,479.16-29,644.80-12,050.76

Finding the Fourth Proportional to 21,479.16, 29,644.80 and 12,050.76

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Solution

The fourth proportional to 21,479.16, 29,644.80 and 12,050.76 is: 16,632.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.16 : 29,644.80 = 12,050.76 : x
  2. Step 2: Convert to fraction form
    21,479.16/29,644.80 = 12,050.76/x
  3. Step 3: Cross multiply
    21,479.16x = 29,644.80 × 12,050.76
  4. Step 4: Simplify right side
    21,479.16x = 357,242,370.05
  5. Step 5: Solve for x
    x = 357,242,370.05/21,479.16
  6. Step 6: Final answer
    x = 16,632.05

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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.