Home / 39,058.18-53,900.34-21,153.21

Finding the Fourth Proportional to 39,058.18, 53,900.34 and 21,153.21

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Solution

The fourth proportional to 39,058.18, 53,900.34 and 21,153.21 is: 29,191.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.18 : 53,900.34 = 21,153.21 : x
  2. Step 2: Convert to fraction form
    39,058.18/53,900.34 = 21,153.21/x
  3. Step 3: Cross multiply
    39,058.18x = 53,900.34 × 21,153.21
  4. Step 4: Simplify right side
    39,058.18x = 1,140,165,081.24
  5. Step 5: Solve for x
    x = 1,140,165,081.24/39,058.18
  6. Step 6: Final answer
    x = 29,191.45

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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.