Home / 28,255.84-42,395.72-14,208.48

Finding the Fourth Proportional to 28,255.84, 42,395.72 and 14,208.48

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Solution

The fourth proportional to 28,255.84, 42,395.72 and 14,208.48 is: 21,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.84 : 42,395.72 = 14,208.48 : x
  2. Step 2: Convert to fraction form
    28,255.84/42,395.72 = 14,208.48/x
  3. Step 3: Cross multiply
    28,255.84x = 42,395.72 × 14,208.48
  4. Step 4: Simplify right side
    28,255.84x = 602,378,739.71
  5. Step 5: Solve for x
    x = 602,378,739.71/28,255.84
  6. Step 6: Final answer
    x = 21,318.73

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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.