Home / 31,918.41-44,041.32-20,585.70

Finding the Fourth Proportional to 31,918.41, 44,041.32 and 20,585.70

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Solution

The fourth proportional to 31,918.41, 44,041.32 and 20,585.70 is: 28,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.41 : 44,041.32 = 20,585.70 : x
  2. Step 2: Convert to fraction form
    31,918.41/44,041.32 = 20,585.70/x
  3. Step 3: Cross multiply
    31,918.41x = 44,041.32 × 20,585.70
  4. Step 4: Simplify right side
    31,918.41x = 906,621,401.12
  5. Step 5: Solve for x
    x = 906,621,401.12/31,918.41
  6. Step 6: Final answer
    x = 28,404.34

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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.