Home / 39,398.08-54,368.16-21,493.36

Finding the Fourth Proportional to 39,398.08, 54,368.16 and 21,493.36

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Solution

The fourth proportional to 39,398.08, 54,368.16 and 21,493.36 is: 29,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.08 : 54,368.16 = 21,493.36 : x
  2. Step 2: Convert to fraction form
    39,398.08/54,368.16 = 21,493.36/x
  3. Step 3: Cross multiply
    39,398.08x = 54,368.16 × 21,493.36
  4. Step 4: Simplify right side
    39,398.08x = 1,168,554,435.42
  5. Step 5: Solve for x
    x = 1,168,554,435.42/39,398.08
  6. Step 6: Final answer
    x = 29,660.19

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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.