Home / 22,880.86-31,559.31-20,998.52

Finding the Fourth Proportional to 22,880.86, 31,559.31 and 20,998.52

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Solution

The fourth proportional to 22,880.86, 31,559.31 and 20,998.52 is: 28,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,880.86 : 31,559.31 = 20,998.52 : x
  2. Step 2: Convert to fraction form
    22,880.86/31,559.31 = 20,998.52/x
  3. Step 3: Cross multiply
    22,880.86x = 31,559.31 × 20,998.52
  4. Step 4: Simplify right side
    22,880.86x = 662,698,776.13
  5. Step 5: Solve for x
    x = 662,698,776.13/22,880.86
  6. Step 6: Final answer
    x = 28,963.02

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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.