Home / 20,841.72-31,263.66-5,259.48

Finding the Fourth Proportional to 20,841.72, 31,263.66 and 5,259.48

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Solution

The fourth proportional to 20,841.72, 31,263.66 and 5,259.48 is: 7,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.72 : 31,263.66 = 5,259.48 : x
  2. Step 2: Convert to fraction form
    20,841.72/31,263.66 = 5,259.48/x
  3. Step 3: Cross multiply
    20,841.72x = 31,263.66 × 5,259.48
  4. Step 4: Simplify right side
    20,841.72x = 164,430,594.50
  5. Step 5: Solve for x
    x = 164,430,594.50/20,841.72
  6. Step 6: Final answer
    x = 7,889.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.