Home / 21,053.23-31,561.26-8,583.68

Finding the Fourth Proportional to 21,053.23, 31,561.26 and 8,583.68

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Solution

The fourth proportional to 21,053.23, 31,561.26 and 8,583.68 is: 12,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.23 : 31,561.26 = 8,583.68 : x
  2. Step 2: Convert to fraction form
    21,053.23/31,561.26 = 8,583.68/x
  3. Step 3: Cross multiply
    21,053.23x = 31,561.26 × 8,583.68
  4. Step 4: Simplify right side
    21,053.23x = 270,911,756.24
  5. Step 5: Solve for x
    x = 270,911,756.24/21,053.23
  6. Step 6: Final answer
    x = 12,867.94

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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.