Home / 26,658.45-36,789-14,721.51

Finding the Fourth Proportional to 26,658.45, 36,789 and 14,721.51

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Solution

The fourth proportional to 26,658.45, 36,789 and 14,721.51 is: 20,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.45 : 36,789 = 14,721.51 : x
  2. Step 2: Convert to fraction form
    26,658.45/36,789 = 14,721.51/x
  3. Step 3: Cross multiply
    26,658.45x = 36,789 × 14,721.51
  4. Step 4: Simplify right side
    26,658.45x = 541,589,631.39
  5. Step 5: Solve for x
    x = 541,589,631.39/26,658.45
  6. Step 6: Final answer
    x = 20,315.87

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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.