Home / 19,221.38-26,525.50-10,389.38

Finding the Fourth Proportional to 19,221.38, 26,525.50 and 10,389.38

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Solution

The fourth proportional to 19,221.38, 26,525.50 and 10,389.38 is: 14,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.38 : 26,525.50 = 10,389.38 : x
  2. Step 2: Convert to fraction form
    19,221.38/26,525.50 = 10,389.38/x
  3. Step 3: Cross multiply
    19,221.38x = 26,525.50 × 10,389.38
  4. Step 4: Simplify right side
    19,221.38x = 275,583,340.59
  5. Step 5: Solve for x
    x = 275,583,340.59/19,221.38
  6. Step 6: Final answer
    x = 14,337.34

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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.