Home / 39,058.16-53,900.30-21,153.31

Finding the Fourth Proportional to 39,058.16, 53,900.30 and 21,153.31

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Solution

The fourth proportional to 39,058.16, 53,900.30 and 21,153.31 is: 29,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.16 : 53,900.30 = 21,153.31 : x
  2. Step 2: Convert to fraction form
    39,058.16/53,900.30 = 21,153.31/x
  3. Step 3: Cross multiply
    39,058.16x = 53,900.30 × 21,153.31
  4. Step 4: Simplify right side
    39,058.16x = 1,140,169,673.13
  5. Step 5: Solve for x
    x = 1,140,169,673.13/39,058.16
  6. Step 6: Final answer
    x = 29,191.59

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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.