Home / 39,058.11-53,900.19-21,153.18

Finding the Fourth Proportional to 39,058.11, 53,900.19 and 21,153.18

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Solution

The fourth proportional to 39,058.11, 53,900.19 and 21,153.18 is: 29,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.11 : 53,900.19 = 21,153.18 : x
  2. Step 2: Convert to fraction form
    39,058.11/53,900.19 = 21,153.18/x
  3. Step 3: Cross multiply
    39,058.11x = 53,900.19 × 21,153.18
  4. Step 4: Simplify right side
    39,058.11x = 1,140,160,421.10
  5. Step 5: Solve for x
    x = 1,140,160,421.10/39,058.11
  6. Step 6: Final answer
    x = 29,191.39

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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.