Home / 28,239.39-42,331.55-13,444.34

Finding the Fourth Proportional to 28,239.39, 42,331.55 and 13,444.34

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Solution

The fourth proportional to 28,239.39, 42,331.55 and 13,444.34 is: 20,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.39 : 42,331.55 = 13,444.34 : x
  2. Step 2: Convert to fraction form
    28,239.39/42,331.55 = 13,444.34/x
  3. Step 3: Cross multiply
    28,239.39x = 42,331.55 × 13,444.34
  4. Step 4: Simplify right side
    28,239.39x = 569,119,472.05
  5. Step 5: Solve for x
    x = 569,119,472.05/28,239.39
  6. Step 6: Final answer
    x = 20,153.39

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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.