Home / 28,788.12-43,182.12-9,068.40

Finding the Fourth Proportional to 28,788.12, 43,182.12 and 9,068.40

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Solution

The fourth proportional to 28,788.12, 43,182.12 and 9,068.40 is: 13,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.12 : 43,182.12 = 9,068.40 : x
  2. Step 2: Convert to fraction form
    28,788.12/43,182.12 = 9,068.40/x
  3. Step 3: Cross multiply
    28,788.12x = 43,182.12 × 9,068.40
  4. Step 4: Simplify right side
    28,788.12x = 391,592,737.01
  5. Step 5: Solve for x
    x = 391,592,737.01/28,788.12
  6. Step 6: Final answer
    x = 13,602.58

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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.