Home / 39,263.78-54,182.61-21,358.10

Finding the Fourth Proportional to 39,263.78, 54,182.61 and 21,358.10

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Solution

The fourth proportional to 39,263.78, 54,182.61 and 21,358.10 is: 29,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,263.78 : 54,182.61 = 21,358.10 : x
  2. Step 2: Convert to fraction form
    39,263.78/54,182.61 = 21,358.10/x
  3. Step 3: Cross multiply
    39,263.78x = 54,182.61 × 21,358.10
  4. Step 4: Simplify right side
    39,263.78x = 1,157,237,602.64
  5. Step 5: Solve for x
    x = 1,157,237,602.64/39,263.78
  6. Step 6: Final answer
    x = 29,473.41

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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.