Home / 21,298.44-31,901.14-17,558.67

Finding the Fourth Proportional to 21,298.44, 31,901.14 and 17,558.67

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Solution

The fourth proportional to 21,298.44, 31,901.14 and 17,558.67 is: 26,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.44 : 31,901.14 = 17,558.67 : x
  2. Step 2: Convert to fraction form
    21,298.44/31,901.14 = 17,558.67/x
  3. Step 3: Cross multiply
    21,298.44x = 31,901.14 × 17,558.67
  4. Step 4: Simplify right side
    21,298.44x = 560,141,731.46
  5. Step 5: Solve for x
    x = 560,141,731.46/21,298.44
  6. Step 6: Final answer
    x = 26,299.66

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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.