Home / 25,429.61-35,058.42-21,443.81

Finding the Fourth Proportional to 25,429.61, 35,058.42 and 21,443.81

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Solution

The fourth proportional to 25,429.61, 35,058.42 and 21,443.81 is: 29,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.61 : 35,058.42 = 21,443.81 : x
  2. Step 2: Convert to fraction form
    25,429.61/35,058.42 = 21,443.81/x
  3. Step 3: Cross multiply
    25,429.61x = 35,058.42 × 21,443.81
  4. Step 4: Simplify right side
    25,429.61x = 751,785,922.09
  5. Step 5: Solve for x
    x = 751,785,922.09/25,429.61
  6. Step 6: Final answer
    x = 29,563.40

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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.