Home / 21,969.09-32,959.26-6,386.72

Finding the Fourth Proportional to 21,969.09, 32,959.26 and 6,386.72

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Solution

The fourth proportional to 21,969.09, 32,959.26 and 6,386.72 is: 9,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.09 : 32,959.26 = 6,386.72 : x
  2. Step 2: Convert to fraction form
    21,969.09/32,959.26 = 6,386.72/x
  3. Step 3: Cross multiply
    21,969.09x = 32,959.26 × 6,386.72
  4. Step 4: Simplify right side
    21,969.09x = 210,501,523.83
  5. Step 5: Solve for x
    x = 210,501,523.83/21,969.09
  6. Step 6: Final answer
    x = 9,581.71

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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.