Home / 23,180.05-31,989-13,626.91

Finding the Fourth Proportional to 23,180.05, 31,989 and 13,626.91

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Solution

The fourth proportional to 23,180.05, 31,989 and 13,626.91 is: 18,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.05 : 31,989 = 13,626.91 : x
  2. Step 2: Convert to fraction form
    23,180.05/31,989 = 13,626.91/x
  3. Step 3: Cross multiply
    23,180.05x = 31,989 × 13,626.91
  4. Step 4: Simplify right side
    23,180.05x = 435,911,223.99
  5. Step 5: Solve for x
    x = 435,911,223.99/23,180.05
  6. Step 6: Final answer
    x = 18,805.45

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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.