Home / 28,581.36-42,878.30-9,605.32

Finding the Fourth Proportional to 28,581.36, 42,878.30 and 9,605.32

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Solution

The fourth proportional to 28,581.36, 42,878.30 and 9,605.32 is: 14,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.36 : 42,878.30 = 9,605.32 : x
  2. Step 2: Convert to fraction form
    28,581.36/42,878.30 = 9,605.32/x
  3. Step 3: Cross multiply
    28,581.36x = 42,878.30 × 9,605.32
  4. Step 4: Simplify right side
    28,581.36x = 411,859,792.56
  5. Step 5: Solve for x
    x = 411,859,792.56/28,581.36
  6. Step 6: Final answer
    x = 14,410.08

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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.