Home / 38,603.16-53,268.05-21,605.04

Finding the Fourth Proportional to 38,603.16, 53,268.05 and 21,605.04

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Solution

The fourth proportional to 38,603.16, 53,268.05 and 21,605.04 is: 29,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.16 : 53,268.05 = 21,605.04 : x
  2. Step 2: Convert to fraction form
    38,603.16/53,268.05 = 21,605.04/x
  3. Step 3: Cross multiply
    38,603.16x = 53,268.05 × 21,605.04
  4. Step 4: Simplify right side
    38,603.16x = 1,150,858,242.95
  5. Step 5: Solve for x
    x = 1,150,858,242.95/38,603.16
  6. Step 6: Final answer
    x = 29,812.54

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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.