Home / 21,013.46-28,995.92-14,222.32

Finding the Fourth Proportional to 21,013.46, 28,995.92 and 14,222.32

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Solution

The fourth proportional to 21,013.46, 28,995.92 and 14,222.32 is: 19,625.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013.46 : 28,995.92 = 14,222.32 : x
  2. Step 2: Convert to fraction form
    21,013.46/28,995.92 = 14,222.32/x
  3. Step 3: Cross multiply
    21,013.46x = 28,995.92 × 14,222.32
  4. Step 4: Simplify right side
    21,013.46x = 412,389,252.93
  5. Step 5: Solve for x
    x = 412,389,252.93/21,013.46
  6. Step 6: Final answer
    x = 19,625.00

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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.