Home / 22,420.17-30,939.93-12,349.08

Finding the Fourth Proportional to 22,420.17, 30,939.93 and 12,349.08

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Solution

The fourth proportional to 22,420.17, 30,939.93 and 12,349.08 is: 17,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.17 : 30,939.93 = 12,349.08 : x
  2. Step 2: Convert to fraction form
    22,420.17/30,939.93 = 12,349.08/x
  3. Step 3: Cross multiply
    22,420.17x = 30,939.93 × 12,349.08
  4. Step 4: Simplify right side
    22,420.17x = 382,079,670.76
  5. Step 5: Solve for x
    x = 382,079,670.76/22,420.17
  6. Step 6: Final answer
    x = 17,041.78

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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.