Home / 31,573.92-43,563.36-21,484.32

Finding the Fourth Proportional to 31,573.92, 43,563.36 and 21,484.32

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Solution

The fourth proportional to 31,573.92, 43,563.36 and 21,484.32 is: 29,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,573.92 : 43,563.36 = 21,484.32 : x
  2. Step 2: Convert to fraction form
    31,573.92/43,563.36 = 21,484.32/x
  3. Step 3: Cross multiply
    31,573.92x = 43,563.36 × 21,484.32
  4. Step 4: Simplify right side
    31,573.92x = 935,929,166.52
  5. Step 5: Solve for x
    x = 935,929,166.52/31,573.92
  6. Step 6: Final answer
    x = 29,642.48

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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.