Home / 39,061.77-53,904.96-21,156.36

Finding the Fourth Proportional to 39,061.77, 53,904.96 and 21,156.36

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Solution

The fourth proportional to 39,061.77, 53,904.96 and 21,156.36 is: 29,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,061.77 : 53,904.96 = 21,156.36 : x
  2. Step 2: Convert to fraction form
    39,061.77/53,904.96 = 21,156.36/x
  3. Step 3: Cross multiply
    39,061.77x = 53,904.96 × 21,156.36
  4. Step 4: Simplify right side
    39,061.77x = 1,140,432,739.55
  5. Step 5: Solve for x
    x = 1,140,432,739.55/39,061.77
  6. Step 6: Final answer
    x = 29,195.62

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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.