Home / 35,510.26-53,263.30-13,321.78

Finding the Fourth Proportional to 35,510.26, 53,263.30 and 13,321.78

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Solution

The fourth proportional to 35,510.26, 53,263.30 and 13,321.78 is: 19,981.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,510.26 : 53,263.30 = 13,321.78 : x
  2. Step 2: Convert to fraction form
    35,510.26/53,263.30 = 13,321.78/x
  3. Step 3: Cross multiply
    35,510.26x = 53,263.30 × 13,321.78
  4. Step 4: Simplify right side
    35,510.26x = 709,561,848.17
  5. Step 5: Solve for x
    x = 709,561,848.17/35,510.26
  6. Step 6: Final answer
    x = 19,981.88

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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.