Home / 22,237.02-30,686.20-12,165.20

Finding the Fourth Proportional to 22,237.02, 30,686.20 and 12,165.20

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Solution

The fourth proportional to 22,237.02, 30,686.20 and 12,165.20 is: 16,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,237.02 : 30,686.20 = 12,165.20 : x
  2. Step 2: Convert to fraction form
    22,237.02/30,686.20 = 12,165.20/x
  3. Step 3: Cross multiply
    22,237.02x = 30,686.20 × 12,165.20
  4. Step 4: Simplify right side
    22,237.02x = 373,303,760.24
  5. Step 5: Solve for x
    x = 373,303,760.24/22,237.02
  6. Step 6: Final answer
    x = 16,787.49

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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.