Home / 21,063.45-31,595.83-9,211.13

Finding the Fourth Proportional to 21,063.45, 31,595.83 and 9,211.13

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Solution

The fourth proportional to 21,063.45, 31,595.83 and 9,211.13 is: 13,816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.45 : 31,595.83 = 9,211.13 : x
  2. Step 2: Convert to fraction form
    21,063.45/31,595.83 = 9,211.13/x
  3. Step 3: Cross multiply
    21,063.45x = 31,595.83 × 9,211.13
  4. Step 4: Simplify right side
    21,063.45x = 291,033,123.52
  5. Step 5: Solve for x
    x = 291,033,123.52/21,063.45
  6. Step 6: Final answer
    x = 13,816.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.