Home / 22,528.14-31,086.12-12,455.22

Finding the Fourth Proportional to 22,528.14, 31,086.12 and 12,455.22

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Solution

The fourth proportional to 22,528.14, 31,086.12 and 12,455.22 is: 17,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,528.14 : 31,086.12 = 12,455.22 : x
  2. Step 2: Convert to fraction form
    22,528.14/31,086.12 = 12,455.22/x
  3. Step 3: Cross multiply
    22,528.14x = 31,086.12 × 12,455.22
  4. Step 4: Simplify right side
    22,528.14x = 387,184,463.55
  5. Step 5: Solve for x
    x = 387,184,463.55/22,528.14
  6. Step 6: Final answer
    x = 17,186.70

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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.