Home / 31,404.52-43,357.26-20,803.24

Finding the Fourth Proportional to 31,404.52, 43,357.26 and 20,803.24

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Solution

The fourth proportional to 31,404.52, 43,357.26 and 20,803.24 is: 28,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,404.52 : 43,357.26 = 20,803.24 : x
  2. Step 2: Convert to fraction form
    31,404.52/43,357.26 = 20,803.24/x
  3. Step 3: Cross multiply
    31,404.52x = 43,357.26 × 20,803.24
  4. Step 4: Simplify right side
    31,404.52x = 901,971,485.52
  5. Step 5: Solve for x
    x = 901,971,485.52/31,404.52
  6. Step 6: Final answer
    x = 28,721.07

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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.