Home / 39,140.80-54,015.36-23,238.40

Finding the Fourth Proportional to 39,140.80, 54,015.36 and 23,238.40

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Solution

The fourth proportional to 39,140.80, 54,015.36 and 23,238.40 is: 32,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,140.80 : 54,015.36 = 23,238.40 : x
  2. Step 2: Convert to fraction form
    39,140.80/54,015.36 = 23,238.40/x
  3. Step 3: Cross multiply
    39,140.80x = 54,015.36 × 23,238.40
  4. Step 4: Simplify right side
    39,140.80x = 1,255,230,541.82
  5. Step 5: Solve for x
    x = 1,255,230,541.82/39,140.80
  6. Step 6: Final answer
    x = 32,069.62

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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.