Home / 26,178.70-36,121.71-15,570.94

Finding the Fourth Proportional to 26,178.70, 36,121.71 and 15,570.94

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Solution

The fourth proportional to 26,178.70, 36,121.71 and 15,570.94 is: 21,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,178.70 : 36,121.71 = 15,570.94 : x
  2. Step 2: Convert to fraction form
    26,178.70/36,121.71 = 15,570.94/x
  3. Step 3: Cross multiply
    26,178.70x = 36,121.71 × 15,570.94
  4. Step 4: Simplify right side
    26,178.70x = 562,448,979.11
  5. Step 5: Solve for x
    x = 562,448,979.11/26,178.70
  6. Step 6: Final answer
    x = 21,484.99

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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.