Home / 20,842.29-31,248.86-10,448.37

Finding the Fourth Proportional to 20,842.29, 31,248.86 and 10,448.37

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Solution

The fourth proportional to 20,842.29, 31,248.86 and 10,448.37 is: 15,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.29 : 31,248.86 = 10,448.37 : x
  2. Step 2: Convert to fraction form
    20,842.29/31,248.86 = 10,448.37/x
  3. Step 3: Cross multiply
    20,842.29x = 31,248.86 × 10,448.37
  4. Step 4: Simplify right side
    20,842.29x = 326,499,599.12
  5. Step 5: Solve for x
    x = 326,499,599.12/20,842.29
  6. Step 6: Final answer
    x = 15,665.25

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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.