Home / 37,479.36-51,721.20-20,712.24

Finding the Fourth Proportional to 37,479.36, 51,721.20 and 20,712.24

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Solution

The fourth proportional to 37,479.36, 51,721.20 and 20,712.24 is: 28,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,479.36 : 51,721.20 = 20,712.24 : x
  2. Step 2: Convert to fraction form
    37,479.36/51,721.20 = 20,712.24/x
  3. Step 3: Cross multiply
    37,479.36x = 51,721.20 × 20,712.24
  4. Step 4: Simplify right side
    37,479.36x = 1,071,261,907.49
  5. Step 5: Solve for x
    x = 1,071,261,907.49/37,479.36
  6. Step 6: Final answer
    x = 28,582.72

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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.