Home / 31,461.08-43,415.60-18,040.23

Finding the Fourth Proportional to 31,461.08, 43,415.60 and 18,040.23

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Solution

The fourth proportional to 31,461.08, 43,415.60 and 18,040.23 is: 24,895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,461.08 : 43,415.60 = 18,040.23 : x
  2. Step 2: Convert to fraction form
    31,461.08/43,415.60 = 18,040.23/x
  3. Step 3: Cross multiply
    31,461.08x = 43,415.60 × 18,040.23
  4. Step 4: Simplify right side
    31,461.08x = 783,227,319.39
  5. Step 5: Solve for x
    x = 783,227,319.39/31,461.08
  6. Step 6: Final answer
    x = 24,895.12

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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.