Home / 28,203.89-42,291.95-11,559.39

Finding the Fourth Proportional to 28,203.89, 42,291.95 and 11,559.39

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Solution

The fourth proportional to 28,203.89, 42,291.95 and 11,559.39 is: 17,333.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.89 : 42,291.95 = 11,559.39 : x
  2. Step 2: Convert to fraction form
    28,203.89/42,291.95 = 11,559.39/x
  3. Step 3: Cross multiply
    28,203.89x = 42,291.95 × 11,559.39
  4. Step 4: Simplify right side
    28,203.89x = 488,869,086.11
  5. Step 5: Solve for x
    x = 488,869,086.11/28,203.89
  6. Step 6: Final answer
    x = 17,333.40

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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.