Home / 31,505.52-43,496.28-20,904.24

Finding the Fourth Proportional to 31,505.52, 43,496.28 and 20,904.24

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Solution

The fourth proportional to 31,505.52, 43,496.28 and 20,904.24 is: 28,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.52 : 43,496.28 = 20,904.24 : x
  2. Step 2: Convert to fraction form
    31,505.52/43,496.28 = 20,904.24/x
  3. Step 3: Cross multiply
    31,505.52x = 43,496.28 × 20,904.24
  4. Step 4: Simplify right side
    31,505.52x = 909,256,676.23
  5. Step 5: Solve for x
    x = 909,256,676.23/31,505.52
  6. Step 6: Final answer
    x = 28,860.23

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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.