Home / 39,059.77-53,902.52-21,154.81

Finding the Fourth Proportional to 39,059.77, 53,902.52 and 21,154.81

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Solution

The fourth proportional to 39,059.77, 53,902.52 and 21,154.81 is: 29,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.77 : 53,902.52 = 21,154.81 : x
  2. Step 2: Convert to fraction form
    39,059.77/53,902.52 = 21,154.81/x
  3. Step 3: Cross multiply
    39,059.77x = 53,902.52 × 21,154.81
  4. Step 4: Simplify right side
    39,059.77x = 1,140,297,569.12
  5. Step 5: Solve for x
    x = 1,140,297,569.12/39,059.77
  6. Step 6: Final answer
    x = 29,193.66

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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.