Home / 22,619.58-31,212.70-12,545.47

Finding the Fourth Proportional to 22,619.58, 31,212.70 and 12,545.47

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Solution

The fourth proportional to 22,619.58, 31,212.70 and 12,545.47 is: 17,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.58 : 31,212.70 = 12,545.47 : x
  2. Step 2: Convert to fraction form
    22,619.58/31,212.70 = 12,545.47/x
  3. Step 3: Cross multiply
    22,619.58x = 31,212.70 × 12,545.47
  4. Step 4: Simplify right side
    22,619.58x = 391,577,991.47
  5. Step 5: Solve for x
    x = 391,577,991.47/22,619.58
  6. Step 6: Final answer
    x = 17,311.46

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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.