Home / 22,416.55-30,935.05-12,345.21

Finding the Fourth Proportional to 22,416.55, 30,935.05 and 12,345.21

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Solution

The fourth proportional to 22,416.55, 30,935.05 and 12,345.21 is: 17,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,416.55 : 30,935.05 = 12,345.21 : x
  2. Step 2: Convert to fraction form
    22,416.55/30,935.05 = 12,345.21/x
  3. Step 3: Cross multiply
    22,416.55x = 30,935.05 × 12,345.21
  4. Step 4: Simplify right side
    22,416.55x = 381,899,657.75
  5. Step 5: Solve for x
    x = 381,899,657.75/22,416.55
  6. Step 6: Final answer
    x = 17,036.51

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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.