Home / 22,278.24-30,762.90-15,924.60

Finding the Fourth Proportional to 22,278.24, 30,762.90 and 15,924.60

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Solution

The fourth proportional to 22,278.24, 30,762.90 and 15,924.60 is: 21,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.24 : 30,762.90 = 15,924.60 : x
  2. Step 2: Convert to fraction form
    22,278.24/30,762.90 = 15,924.60/x
  3. Step 3: Cross multiply
    22,278.24x = 30,762.90 × 15,924.60
  4. Step 4: Simplify right side
    22,278.24x = 489,886,877.34
  5. Step 5: Solve for x
    x = 489,886,877.34/22,278.24
  6. Step 6: Final answer
    x = 21,989.48

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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.