Home / 28,887.99-39,850.65-18,833.28

Finding the Fourth Proportional to 28,887.99, 39,850.65 and 18,833.28

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Solution

The fourth proportional to 28,887.99, 39,850.65 and 18,833.28 is: 25,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.99 : 39,850.65 = 18,833.28 : x
  2. Step 2: Convert to fraction form
    28,887.99/39,850.65 = 18,833.28/x
  3. Step 3: Cross multiply
    28,887.99x = 39,850.65 × 18,833.28
  4. Step 4: Simplify right side
    28,887.99x = 750,518,449.63
  5. Step 5: Solve for x
    x = 750,518,449.63/28,887.99
  6. Step 6: Final answer
    x = 25,980.29

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1.5x scale

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.