Home / 39,056.20-53,896.90-21,151.08

Finding the Fourth Proportional to 39,056.20, 53,896.90 and 21,151.08

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Solution

The fourth proportional to 39,056.20, 53,896.90 and 21,151.08 is: 29,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,056.20 : 53,896.90 = 21,151.08 : x
  2. Step 2: Convert to fraction form
    39,056.20/53,896.90 = 21,151.08/x
  3. Step 3: Cross multiply
    39,056.20x = 53,896.90 × 21,151.08
  4. Step 4: Simplify right side
    39,056.20x = 1,139,977,643.65
  5. Step 5: Solve for x
    x = 1,139,977,643.65/39,056.20
  6. Step 6: Final answer
    x = 29,188.14

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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.