Home / 31,205.52-43,064.46-18,637.56

Finding the Fourth Proportional to 31,205.52, 43,064.46 and 18,637.56

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Solution

The fourth proportional to 31,205.52, 43,064.46 and 18,637.56 is: 25,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,205.52 : 43,064.46 = 18,637.56 : x
  2. Step 2: Convert to fraction form
    31,205.52/43,064.46 = 18,637.56/x
  3. Step 3: Cross multiply
    31,205.52x = 43,064.46 × 18,637.56
  4. Step 4: Simplify right side
    31,205.52x = 802,616,457.12
  5. Step 5: Solve for x
    x = 802,616,457.12/31,205.52
  6. Step 6: Final answer
    x = 25,720.34

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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.