Home / 28,386.60-42,599.10-15,906.60

Finding the Fourth Proportional to 28,386.60, 42,599.10 and 15,906.60

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Solution

The fourth proportional to 28,386.60, 42,599.10 and 15,906.60 is: 23,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.60 : 42,599.10 = 15,906.60 : x
  2. Step 2: Convert to fraction form
    28,386.60/42,599.10 = 15,906.60/x
  3. Step 3: Cross multiply
    28,386.60x = 42,599.10 × 15,906.60
  4. Step 4: Simplify right side
    28,386.60x = 677,606,844.06
  5. Step 5: Solve for x
    x = 677,606,844.06/28,386.60
  6. Step 6: Final answer
    x = 23,870.66

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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.