Home / 18,935.85-26,156.13-15,364.08

Finding the Fourth Proportional to 18,935.85, 26,156.13 and 15,364.08

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Solution

The fourth proportional to 18,935.85, 26,156.13 and 15,364.08 is: 21,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.85 : 26,156.13 = 15,364.08 : x
  2. Step 2: Convert to fraction form
    18,935.85/26,156.13 = 15,364.08/x
  3. Step 3: Cross multiply
    18,935.85x = 26,156.13 × 15,364.08
  4. Step 4: Simplify right side
    18,935.85x = 401,864,873.81
  5. Step 5: Solve for x
    x = 401,864,873.81/18,935.85
  6. Step 6: Final answer
    x = 21,222.44

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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.