Home / 39,544.99-54,572.08-21,640.00

Finding the Fourth Proportional to 39,544.99, 54,572.08 and 21,640.00

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Solution

The fourth proportional to 39,544.99, 54,572.08 and 21,640.00 is: 29,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.99 : 54,572.08 = 21,640.00 : x
  2. Step 2: Convert to fraction form
    39,544.99/54,572.08 = 21,640.00/x
  3. Step 3: Cross multiply
    39,544.99x = 54,572.08 × 21,640.00
  4. Step 4: Simplify right side
    39,544.99x = 1,180,939,538.34
  5. Step 5: Solve for x
    x = 1,180,939,538.34/39,544.99
  6. Step 6: Final answer
    x = 29,863.19

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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.