Home / 21,058.56-31,587.84-10,667.52

Finding the Fourth Proportional to 21,058.56, 31,587.84 and 10,667.52

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Solution

The fourth proportional to 21,058.56, 31,587.84 and 10,667.52 is: 16,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.56 : 31,587.84 = 10,667.52 : x
  2. Step 2: Convert to fraction form
    21,058.56/31,587.84 = 10,667.52/x
  3. Step 3: Cross multiply
    21,058.56x = 31,587.84 × 10,667.52
  4. Step 4: Simplify right side
    21,058.56x = 336,963,914.96
  5. Step 5: Solve for x
    x = 336,963,914.96/21,058.56
  6. Step 6: Final answer
    x = 16,001.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.