Home / 28,415.72-39,224.40-24,420.80

Finding the Fourth Proportional to 28,415.72, 39,224.40 and 24,420.80

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Solution

The fourth proportional to 28,415.72, 39,224.40 and 24,420.80 is: 33,709.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.72 : 39,224.40 = 24,420.80 : x
  2. Step 2: Convert to fraction form
    28,415.72/39,224.40 = 24,420.80/x
  3. Step 3: Cross multiply
    28,415.72x = 39,224.40 × 24,420.80
  4. Step 4: Simplify right side
    28,415.72x = 957,891,227.52
  5. Step 5: Solve for x
    x = 957,891,227.52/28,415.72
  6. Step 6: Final answer
    x = 33,709.91

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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.