Home / 31,328.29-43,232.83-16,988.19

Finding the Fourth Proportional to 31,328.29, 43,232.83 and 16,988.19

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Solution

The fourth proportional to 31,328.29, 43,232.83 and 16,988.19 is: 23,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.29 : 43,232.83 = 16,988.19 : x
  2. Step 2: Convert to fraction form
    31,328.29/43,232.83 = 16,988.19/x
  3. Step 3: Cross multiply
    31,328.29x = 43,232.83 × 16,988.19
  4. Step 4: Simplify right side
    31,328.29x = 734,447,530.28
  5. Step 5: Solve for x
    x = 734,447,530.28/31,328.29
  6. Step 6: Final answer
    x = 23,443.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.