Home / 30,164.60-41,588.88-21,561.08

Finding the Fourth Proportional to 30,164.60, 41,588.88 and 21,561.08

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Solution

The fourth proportional to 30,164.60, 41,588.88 and 21,561.08 is: 29,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164.60 : 41,588.88 = 21,561.08 : x
  2. Step 2: Convert to fraction form
    30,164.60/41,588.88 = 21,561.08/x
  3. Step 3: Cross multiply
    30,164.60x = 41,588.88 × 21,561.08
  4. Step 4: Simplify right side
    30,164.60x = 896,701,168.79
  5. Step 5: Solve for x
    x = 896,701,168.79/30,164.60
  6. Step 6: Final answer
    x = 29,726.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.