Home / 28,870.10-43,296.15-11,345.30

Finding the Fourth Proportional to 28,870.10, 43,296.15 and 11,345.30

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Solution

The fourth proportional to 28,870.10, 43,296.15 and 11,345.30 is: 17,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.10 : 43,296.15 = 11,345.30 : x
  2. Step 2: Convert to fraction form
    28,870.10/43,296.15 = 11,345.30/x
  3. Step 3: Cross multiply
    28,870.10x = 43,296.15 × 11,345.30
  4. Step 4: Simplify right side
    28,870.10x = 491,207,810.60
  5. Step 5: Solve for x
    x = 491,207,810.60/28,870.10
  6. Step 6: Final answer
    x = 17,014.41

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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.