Home / 20,417.55-28,176.89-11,466.64

Finding the Fourth Proportional to 20,417.55, 28,176.89 and 11,466.64

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Solution

The fourth proportional to 20,417.55, 28,176.89 and 11,466.64 is: 15,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.55 : 28,176.89 = 11,466.64 : x
  2. Step 2: Convert to fraction form
    20,417.55/28,176.89 = 11,466.64/x
  3. Step 3: Cross multiply
    20,417.55x = 28,176.89 × 11,466.64
  4. Step 4: Simplify right side
    20,417.55x = 323,094,253.95
  5. Step 5: Solve for x
    x = 323,094,253.95/20,417.55
  6. Step 6: Final answer
    x = 15,824.34

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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.