Home / 20,802.08-31,208.58-6,012.20

Finding the Fourth Proportional to 20,802.08, 31,208.58 and 6,012.20

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Solution

The fourth proportional to 20,802.08, 31,208.58 and 6,012.20 is: 9,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.08 : 31,208.58 = 6,012.20 : x
  2. Step 2: Convert to fraction form
    20,802.08/31,208.58 = 6,012.20/x
  3. Step 3: Cross multiply
    20,802.08x = 31,208.58 × 6,012.20
  4. Step 4: Simplify right side
    20,802.08x = 187,632,068.63
  5. Step 5: Solve for x
    x = 187,632,068.63/20,802.08
  6. Step 6: Final answer
    x = 9,019.87

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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.