Home / 39,041.98-53,878.06-21,136.94

Finding the Fourth Proportional to 39,041.98, 53,878.06 and 21,136.94

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Solution

The fourth proportional to 39,041.98, 53,878.06 and 21,136.94 is: 29,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.98 : 53,878.06 = 21,136.94 : x
  2. Step 2: Convert to fraction form
    39,041.98/53,878.06 = 21,136.94/x
  3. Step 3: Cross multiply
    39,041.98x = 53,878.06 × 21,136.94
  4. Step 4: Simplify right side
    39,041.98x = 1,138,817,321.54
  5. Step 5: Solve for x
    x = 1,138,817,321.54/39,041.98
  6. Step 6: Final answer
    x = 29,169.05

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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.