Home / 21,618.74-32,369.70-11,208.62

Finding the Fourth Proportional to 21,618.74, 32,369.70 and 11,208.62

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Solution

The fourth proportional to 21,618.74, 32,369.70 and 11,208.62 is: 16,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.74 : 32,369.70 = 11,208.62 : x
  2. Step 2: Convert to fraction form
    21,618.74/32,369.70 = 11,208.62/x
  3. Step 3: Cross multiply
    21,618.74x = 32,369.70 × 11,208.62
  4. Step 4: Simplify right side
    21,618.74x = 362,819,666.81
  5. Step 5: Solve for x
    x = 362,819,666.81/21,618.74
  6. Step 6: Final answer
    x = 16,782.65

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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.