Home / 20,709.64-31,060.05-5,914.63

Finding the Fourth Proportional to 20,709.64, 31,060.05 and 5,914.63

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Solution

The fourth proportional to 20,709.64, 31,060.05 and 5,914.63 is: 8,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709.64 : 31,060.05 = 5,914.63 : x
  2. Step 2: Convert to fraction form
    20,709.64/31,060.05 = 5,914.63/x
  3. Step 3: Cross multiply
    20,709.64x = 31,060.05 × 5,914.63
  4. Step 4: Simplify right side
    20,709.64x = 183,708,703.53
  5. Step 5: Solve for x
    x = 183,708,703.53/20,709.64
  6. Step 6: Final answer
    x = 8,870.69

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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.