Home / 22,506.56-31,058.40-12,435.20

Finding the Fourth Proportional to 22,506.56, 31,058.40 and 12,435.20

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Solution

The fourth proportional to 22,506.56, 31,058.40 and 12,435.20 is: 17,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,506.56 : 31,058.40 = 12,435.20 : x
  2. Step 2: Convert to fraction form
    22,506.56/31,058.40 = 12,435.20/x
  3. Step 3: Cross multiply
    22,506.56x = 31,058.40 × 12,435.20
  4. Step 4: Simplify right side
    22,506.56x = 386,217,415.68
  5. Step 5: Solve for x
    x = 386,217,415.68/22,506.56
  6. Step 6: Final answer
    x = 17,160.22

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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.