Home / 22,802.89-31,395.41-20,111.86

Finding the Fourth Proportional to 22,802.89, 31,395.41 and 20,111.86

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Solution

The fourth proportional to 22,802.89, 31,395.41 and 20,111.86 is: 27,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,802.89 : 31,395.41 = 20,111.86 : x
  2. Step 2: Convert to fraction form
    22,802.89/31,395.41 = 20,111.86/x
  3. Step 3: Cross multiply
    22,802.89x = 31,395.41 × 20,111.86
  4. Step 4: Simplify right side
    22,802.89x = 631,420,000.50
  5. Step 5: Solve for x
    x = 631,420,000.50/22,802.89
  6. Step 6: Final answer
    x = 27,690.35

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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.