Home / 20,036.70-30,028.49-10,656.52

Finding the Fourth Proportional to 20,036.70, 30,028.49 and 10,656.52

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Solution

The fourth proportional to 20,036.70, 30,028.49 and 10,656.52 is: 15,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.70 : 30,028.49 = 10,656.52 : x
  2. Step 2: Convert to fraction form
    20,036.70/30,028.49 = 10,656.52/x
  3. Step 3: Cross multiply
    20,036.70x = 30,028.49 × 10,656.52
  4. Step 4: Simplify right side
    20,036.70x = 319,999,155.82
  5. Step 5: Solve for x
    x = 319,999,155.82/20,036.70
  6. Step 6: Final answer
    x = 15,970.65

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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.