Home / 21,134.16-31,706.08-11,268.24

Finding the Fourth Proportional to 21,134.16, 31,706.08 and 11,268.24

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Solution

The fourth proportional to 21,134.16, 31,706.08 and 11,268.24 is: 16,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.16 : 31,706.08 = 11,268.24 : x
  2. Step 2: Convert to fraction form
    21,134.16/31,706.08 = 11,268.24/x
  3. Step 3: Cross multiply
    21,134.16x = 31,706.08 × 11,268.24
  4. Step 4: Simplify right side
    21,134.16x = 357,271,718.90
  5. Step 5: Solve for x
    x = 357,271,718.90/21,134.16
  6. Step 6: Final answer
    x = 16,904.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.