Home / 28,068.68-42,066.48-11,409.08

Finding the Fourth Proportional to 28,068.68, 42,066.48 and 11,409.08

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Solution

The fourth proportional to 28,068.68, 42,066.48 and 11,409.08 is: 17,098.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.68 : 42,066.48 = 11,409.08 : x
  2. Step 2: Convert to fraction form
    28,068.68/42,066.48 = 11,409.08/x
  3. Step 3: Cross multiply
    28,068.68x = 42,066.48 × 11,409.08
  4. Step 4: Simplify right side
    28,068.68x = 479,939,835.64
  5. Step 5: Solve for x
    x = 479,939,835.64/28,068.68
  6. Step 6: Final answer
    x = 17,098.77

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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.