Home / 22,457.44-30,991.58-12,387.12

Finding the Fourth Proportional to 22,457.44, 30,991.58 and 12,387.12

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Solution

The fourth proportional to 22,457.44, 30,991.58 and 12,387.12 is: 17,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,457.44 : 30,991.58 = 12,387.12 : x
  2. Step 2: Convert to fraction form
    22,457.44/30,991.58 = 12,387.12/x
  3. Step 3: Cross multiply
    22,457.44x = 30,991.58 × 12,387.12
  4. Step 4: Simplify right side
    22,457.44x = 383,896,420.45
  5. Step 5: Solve for x
    x = 383,896,420.45/22,457.44
  6. Step 6: Final answer
    x = 17,094.40

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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.