Home / 31,509.54-43,473.86-18,756.29

Finding the Fourth Proportional to 31,509.54, 43,473.86 and 18,756.29

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Solution

The fourth proportional to 31,509.54, 43,473.86 and 18,756.29 is: 25,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.54 : 43,473.86 = 18,756.29 : x
  2. Step 2: Convert to fraction form
    31,509.54/43,473.86 = 18,756.29/x
  3. Step 3: Cross multiply
    31,509.54x = 43,473.86 × 18,756.29
  4. Step 4: Simplify right side
    31,509.54x = 815,408,014.43
  5. Step 5: Solve for x
    x = 815,408,014.43/31,509.54
  6. Step 6: Final answer
    x = 25,878.13

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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.