Home / 20,483.52-28,254.12-14,194.68

Finding the Fourth Proportional to 20,483.52, 28,254.12 and 14,194.68

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Solution

The fourth proportional to 20,483.52, 28,254.12 and 14,194.68 is: 19,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.52 : 28,254.12 = 14,194.68 : x
  2. Step 2: Convert to fraction form
    20,483.52/28,254.12 = 14,194.68/x
  3. Step 3: Cross multiply
    20,483.52x = 28,254.12 × 14,194.68
  4. Step 4: Simplify right side
    20,483.52x = 401,058,192.08
  5. Step 5: Solve for x
    x = 401,058,192.08/20,483.52
  6. Step 6: Final answer
    x = 19,579.55

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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.