Home / 45,909.88-63,328.80-28,887.28

Finding the Fourth Proportional to 45,909.88, 63,328.80 and 28,887.28

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Solution

The fourth proportional to 45,909.88, 63,328.80 and 28,887.28 is: 39,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,909.88 : 63,328.80 = 28,887.28 : x
  2. Step 2: Convert to fraction form
    45,909.88/63,328.80 = 28,887.28/x
  3. Step 3: Cross multiply
    45,909.88x = 63,328.80 × 28,887.28
  4. Step 4: Simplify right side
    45,909.88x = 1,829,396,777.66
  5. Step 5: Solve for x
    x = 1,829,396,777.66/45,909.88
  6. Step 6: Final answer
    x = 39,847.56

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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.