Home / 28,904.40-43,356.60-18,536.40

Finding the Fourth Proportional to 28,904.40, 43,356.60 and 18,536.40

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Solution

The fourth proportional to 28,904.40, 43,356.60 and 18,536.40 is: 27,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904.40 : 43,356.60 = 18,536.40 : x
  2. Step 2: Convert to fraction form
    28,904.40/43,356.60 = 18,536.40/x
  3. Step 3: Cross multiply
    28,904.40x = 43,356.60 × 18,536.40
  4. Step 4: Simplify right side
    28,904.40x = 803,675,280.24
  5. Step 5: Solve for x
    x = 803,675,280.24/28,904.40
  6. Step 6: Final answer
    x = 27,804.60

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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.