Home / 28,987.99-39,703.70-27,285.78

Finding the Fourth Proportional to 28,987.99, 39,703.70 and 27,285.78

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Solution

The fourth proportional to 28,987.99, 39,703.70 and 27,285.78 is: 37,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.99 : 39,703.70 = 27,285.78 : x
  2. Step 2: Convert to fraction form
    28,987.99/39,703.70 = 27,285.78/x
  3. Step 3: Cross multiply
    28,987.99x = 39,703.70 × 27,285.78
  4. Step 4: Simplify right side
    28,987.99x = 1,083,346,423.39
  5. Step 5: Solve for x
    x = 1,083,346,423.39/28,987.99
  6. Step 6: Final answer
    x = 37,372.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.