Home / 21,146.58-31,678.59-10,037.46

Finding the Fourth Proportional to 21,146.58, 31,678.59 and 10,037.46

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Solution

The fourth proportional to 21,146.58, 31,678.59 and 10,037.46 is: 15,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.58 : 31,678.59 = 10,037.46 : x
  2. Step 2: Convert to fraction form
    21,146.58/31,678.59 = 10,037.46/x
  3. Step 3: Cross multiply
    21,146.58x = 31,678.59 × 10,037.46
  4. Step 4: Simplify right side
    21,146.58x = 317,972,579.98
  5. Step 5: Solve for x
    x = 317,972,579.98/21,146.58
  6. Step 6: Final answer
    x = 15,036.60

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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.