Home / 20,615.08-28,455.54-14,664.04

Finding the Fourth Proportional to 20,615.08, 28,455.54 and 14,664.04

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Solution

The fourth proportional to 20,615.08, 28,455.54 and 14,664.04 is: 20,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.08 : 28,455.54 = 14,664.04 : x
  2. Step 2: Convert to fraction form
    20,615.08/28,455.54 = 14,664.04/x
  3. Step 3: Cross multiply
    20,615.08x = 28,455.54 × 14,664.04
  4. Step 4: Simplify right side
    20,615.08x = 417,273,176.78
  5. Step 5: Solve for x
    x = 417,273,176.78/20,615.08
  6. Step 6: Final answer
    x = 20,241.16

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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.