Home / 28,261.35-42,369.48-14,214.15

Finding the Fourth Proportional to 28,261.35, 42,369.48 and 14,214.15

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Solution

The fourth proportional to 28,261.35, 42,369.48 and 14,214.15 is: 21,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.35 : 42,369.48 = 14,214.15 : x
  2. Step 2: Convert to fraction form
    28,261.35/42,369.48 = 14,214.15/x
  3. Step 3: Cross multiply
    28,261.35x = 42,369.48 × 14,214.15
  4. Step 4: Simplify right side
    28,261.35x = 602,246,144.14
  5. Step 5: Solve for x
    x = 602,246,144.14/28,261.35
  6. Step 6: Final answer
    x = 21,309.89

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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.