Home / 39,058.29-53,900.13-21,152.88

Finding the Fourth Proportional to 39,058.29, 53,900.13 and 21,152.88

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Solution

The fourth proportional to 39,058.29, 53,900.13 and 21,152.88 is: 29,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.29 : 53,900.13 = 21,152.88 : x
  2. Step 2: Convert to fraction form
    39,058.29/53,900.13 = 21,152.88/x
  3. Step 3: Cross multiply
    39,058.29x = 53,900.13 × 21,152.88
  4. Step 4: Simplify right side
    39,058.29x = 1,140,142,981.87
  5. Step 5: Solve for x
    x = 1,140,142,981.87/39,058.29
  6. Step 6: Final answer
    x = 29,190.81

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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.