Home / 21,335.67-31,975.97-10,219.23

Finding the Fourth Proportional to 21,335.67, 31,975.97 and 10,219.23

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Solution

The fourth proportional to 21,335.67, 31,975.97 and 10,219.23 is: 15,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.67 : 31,975.97 = 10,219.23 : x
  2. Step 2: Convert to fraction form
    21,335.67/31,975.97 = 10,219.23/x
  3. Step 3: Cross multiply
    21,335.67x = 31,975.97 × 10,219.23
  4. Step 4: Simplify right side
    21,335.67x = 326,769,740.81
  5. Step 5: Solve for x
    x = 326,769,740.81/21,335.67
  6. Step 6: Final answer
    x = 15,315.65

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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.