Home / 21,313.88-31,967.20-9,624.36

Finding the Fourth Proportional to 21,313.88, 31,967.20 and 9,624.36

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Solution

The fourth proportional to 21,313.88, 31,967.20 and 9,624.36 is: 14,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.88 : 31,967.20 = 9,624.36 : x
  2. Step 2: Convert to fraction form
    21,313.88/31,967.20 = 9,624.36/x
  3. Step 3: Cross multiply
    21,313.88x = 31,967.20 × 9,624.36
  4. Step 4: Simplify right side
    21,313.88x = 307,663,840.99
  5. Step 5: Solve for x
    x = 307,663,840.99/21,313.88
  6. Step 6: Final answer
    x = 14,434.91

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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.