Home / 39,039.99-53,875.17-21,134.98

Finding the Fourth Proportional to 39,039.99, 53,875.17 and 21,134.98

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Solution

The fourth proportional to 39,039.99, 53,875.17 and 21,134.98 is: 29,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039.99 : 53,875.17 = 21,134.98 : x
  2. Step 2: Convert to fraction form
    39,039.99/53,875.17 = 21,134.98/x
  3. Step 3: Cross multiply
    39,039.99x = 53,875.17 × 21,134.98
  4. Step 4: Simplify right side
    39,039.99x = 1,138,650,640.45
  5. Step 5: Solve for x
    x = 1,138,650,640.45/39,039.99
  6. Step 6: Final answer
    x = 29,166.26

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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.