Home / 39,056.20-53,896.86-21,151.06

Finding the Fourth Proportional to 39,056.20, 53,896.86 and 21,151.06

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Solution

The fourth proportional to 39,056.20, 53,896.86 and 21,151.06 is: 29,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,056.20 : 53,896.86 = 21,151.06 : x
  2. Step 2: Convert to fraction form
    39,056.20/53,896.86 = 21,151.06/x
  3. Step 3: Cross multiply
    39,056.20x = 53,896.86 × 21,151.06
  4. Step 4: Simplify right side
    39,056.20x = 1,139,975,719.67
  5. Step 5: Solve for x
    x = 1,139,975,719.67/39,056.20
  6. Step 6: Final answer
    x = 29,188.09

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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.