Home / 20,512.78-28,291.53-14,848.36

Finding the Fourth Proportional to 20,512.78, 28,291.53 and 14,848.36

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Solution

The fourth proportional to 20,512.78, 28,291.53 and 14,848.36 is: 20,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.78 : 28,291.53 = 14,848.36 : x
  2. Step 2: Convert to fraction form
    20,512.78/28,291.53 = 14,848.36/x
  3. Step 3: Cross multiply
    20,512.78x = 28,291.53 × 14,848.36
  4. Step 4: Simplify right side
    20,512.78x = 420,082,822.39
  5. Step 5: Solve for x
    x = 420,082,822.39/20,512.78
  6. Step 6: Final answer
    x = 20,479.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.