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Finding the Fourth Proportional to 36,782.40, 55,196.40 and 19,264.80

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Solution

The fourth proportional to 36,782.40, 55,196.40 and 19,264.80 is: 28,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,782.40 : 55,196.40 = 19,264.80 : x
  2. Step 2: Convert to fraction form
    36,782.40/55,196.40 = 19,264.80/x
  3. Step 3: Cross multiply
    36,782.40x = 55,196.40 × 19,264.80
  4. Step 4: Simplify right side
    36,782.40x = 1,063,347,606.72
  5. Step 5: Solve for x
    x = 1,063,347,606.72/36,782.40
  6. Step 6: Final answer
    x = 28,909.14

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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.