Home / 39,064.18-53,908.22-21,158.12

Finding the Fourth Proportional to 39,064.18, 53,908.22 and 21,158.12

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Solution

The fourth proportional to 39,064.18, 53,908.22 and 21,158.12 is: 29,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,064.18 : 53,908.22 = 21,158.12 : x
  2. Step 2: Convert to fraction form
    39,064.18/53,908.22 = 21,158.12/x
  3. Step 3: Cross multiply
    39,064.18x = 53,908.22 × 21,158.12
  4. Step 4: Simplify right side
    39,064.18x = 1,140,596,587.75
  5. Step 5: Solve for x
    x = 1,140,596,587.75/39,064.18
  6. Step 6: Final answer
    x = 29,198.02

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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.