Home / 28,255.39-42,385.44-14,208.19

Finding the Fourth Proportional to 28,255.39, 42,385.44 and 14,208.19

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Solution

The fourth proportional to 28,255.39, 42,385.44 and 14,208.19 is: 21,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.39 : 42,385.44 = 14,208.19 : x
  2. Step 2: Convert to fraction form
    28,255.39/42,385.44 = 14,208.19/x
  3. Step 3: Cross multiply
    28,255.39x = 42,385.44 × 14,208.19
  4. Step 4: Simplify right side
    28,255.39x = 602,220,384.75
  5. Step 5: Solve for x
    x = 602,220,384.75/28,255.39
  6. Step 6: Final answer
    x = 21,313.47

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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.