Home / 28,883.36-39,834.08-18,808

Finding the Fourth Proportional to 28,883.36, 39,834.08 and 18,808

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Solution

The fourth proportional to 28,883.36, 39,834.08 and 18,808 is: 25,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,883.36 : 39,834.08 = 18,808 : x
  2. Step 2: Convert to fraction form
    28,883.36/39,834.08 = 18,808/x
  3. Step 3: Cross multiply
    28,883.36x = 39,834.08 × 18,808
  4. Step 4: Simplify right side
    28,883.36x = 749,199,376.64
  5. Step 5: Solve for x
    x = 749,199,376.64/28,883.36
  6. Step 6: Final answer
    x = 25,938.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.