Home / 20,762.63-31,148.88-6,722.66

Finding the Fourth Proportional to 20,762.63, 31,148.88 and 6,722.66

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Solution

The fourth proportional to 20,762.63, 31,148.88 and 6,722.66 is: 10,085.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.63 : 31,148.88 = 6,722.66 : x
  2. Step 2: Convert to fraction form
    20,762.63/31,148.88 = 6,722.66/x
  3. Step 3: Cross multiply
    20,762.63x = 31,148.88 × 6,722.66
  4. Step 4: Simplify right side
    20,762.63x = 209,403,382.28
  5. Step 5: Solve for x
    x = 209,403,382.28/20,762.63
  6. Step 6: Final answer
    x = 10,085.59

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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.