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Finding the Fourth Proportional to 22,224.52, 30,670.62 and 13,278.88

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Solution

The fourth proportional to 22,224.52, 30,670.62 and 13,278.88 is: 18,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,224.52 : 30,670.62 = 13,278.88 : x
  2. Step 2: Convert to fraction form
    22,224.52/30,670.62 = 13,278.88/x
  3. Step 3: Cross multiply
    22,224.52x = 30,670.62 × 13,278.88
  4. Step 4: Simplify right side
    22,224.52x = 407,271,482.51
  5. Step 5: Solve for x
    x = 407,271,482.51/22,224.52
  6. Step 6: Final answer
    x = 18,325.32

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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.