Home / 21,163.56-31,754.52-10,070.16

Finding the Fourth Proportional to 21,163.56, 31,754.52 and 10,070.16

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Solution

The fourth proportional to 21,163.56, 31,754.52 and 10,070.16 is: 15,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.56 : 31,754.52 = 10,070.16 : x
  2. Step 2: Convert to fraction form
    21,163.56/31,754.52 = 10,070.16/x
  3. Step 3: Cross multiply
    21,163.56x = 31,754.52 × 10,070.16
  4. Step 4: Simplify right side
    21,163.56x = 319,773,097.12
  5. Step 5: Solve for x
    x = 319,773,097.12/21,163.56
  6. Step 6: Final answer
    x = 15,109.61

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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.