Home / 28,239.56-42,331.78-13,444.50

Finding the Fourth Proportional to 28,239.56, 42,331.78 and 13,444.50

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Solution

The fourth proportional to 28,239.56, 42,331.78 and 13,444.50 is: 20,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.56 : 42,331.78 = 13,444.50 : x
  2. Step 2: Convert to fraction form
    28,239.56/42,331.78 = 13,444.50/x
  3. Step 3: Cross multiply
    28,239.56x = 42,331.78 × 13,444.50
  4. Step 4: Simplify right side
    28,239.56x = 569,129,616.21
  5. Step 5: Solve for x
    x = 569,129,616.21/28,239.56
  6. Step 6: Final answer
    x = 20,153.63

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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.