Home / 25,222.16-34,806.64-13,891.28

Finding the Fourth Proportional to 25,222.16, 34,806.64 and 13,891.28

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Solution

The fourth proportional to 25,222.16, 34,806.64 and 13,891.28 is: 19,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,222.16 : 34,806.64 = 13,891.28 : x
  2. Step 2: Convert to fraction form
    25,222.16/34,806.64 = 13,891.28/x
  3. Step 3: Cross multiply
    25,222.16x = 34,806.64 × 13,891.28
  4. Step 4: Simplify right side
    25,222.16x = 483,508,782.10
  5. Step 5: Solve for x
    x = 483,508,782.10/25,222.16
  6. Step 6: Final answer
    x = 19,170.00

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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.