Home / 28,239.30-42,331.41-13,444.25

Finding the Fourth Proportional to 28,239.30, 42,331.41 and 13,444.25

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Solution

The fourth proportional to 28,239.30, 42,331.41 and 13,444.25 is: 20,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.30 : 42,331.41 = 13,444.25 : x
  2. Step 2: Convert to fraction form
    28,239.30/42,331.41 = 13,444.25/x
  3. Step 3: Cross multiply
    28,239.30x = 42,331.41 × 13,444.25
  4. Step 4: Simplify right side
    28,239.30x = 569,113,847.24
  5. Step 5: Solve for x
    x = 569,113,847.24/28,239.30
  6. Step 6: Final answer
    x = 20,153.26

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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.