Home / 31,453.08-43,415.92-19,523.40

Finding the Fourth Proportional to 31,453.08, 43,415.92 and 19,523.40

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Solution

The fourth proportional to 31,453.08, 43,415.92 and 19,523.40 is: 26,948.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.08 : 43,415.92 = 19,523.40 : x
  2. Step 2: Convert to fraction form
    31,453.08/43,415.92 = 19,523.40/x
  3. Step 3: Cross multiply
    31,453.08x = 43,415.92 × 19,523.40
  4. Step 4: Simplify right side
    31,453.08x = 847,626,372.53
  5. Step 5: Solve for x
    x = 847,626,372.53/31,453.08
  6. Step 6: Final answer
    x = 26,948.91

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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.