Home / 21,094.77-31,641.31-5,299.92

Finding the Fourth Proportional to 21,094.77, 31,641.31 and 5,299.92

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Solution

The fourth proportional to 21,094.77, 31,641.31 and 5,299.92 is: 7,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.77 : 31,641.31 = 5,299.92 : x
  2. Step 2: Convert to fraction form
    21,094.77/31,641.31 = 5,299.92/x
  3. Step 3: Cross multiply
    21,094.77x = 31,641.31 × 5,299.92
  4. Step 4: Simplify right side
    21,094.77x = 167,696,411.70
  5. Step 5: Solve for x
    x = 167,696,411.70/21,094.77
  6. Step 6: Final answer
    x = 7,949.67

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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.