Home / 15,624.90-21,572.44-13,943.41

Finding the Fourth Proportional to 15,624.90, 21,572.44 and 13,943.41

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Solution

The fourth proportional to 15,624.90, 21,572.44 and 13,943.41 is: 19,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.90 : 21,572.44 = 13,943.41 : x
  2. Step 2: Convert to fraction form
    15,624.90/21,572.44 = 13,943.41/x
  3. Step 3: Cross multiply
    15,624.90x = 21,572.44 × 13,943.41
  4. Step 4: Simplify right side
    15,624.90x = 300,793,286.83
  5. Step 5: Solve for x
    x = 300,793,286.83/15,624.90
  6. Step 6: Final answer
    x = 19,250.89

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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.