Home / 28,058.26-38,727.05-16,128.53

Finding the Fourth Proportional to 28,058.26, 38,727.05 and 16,128.53

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Solution

The fourth proportional to 28,058.26, 38,727.05 and 16,128.53 is: 22,261.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.26 : 38,727.05 = 16,128.53 : x
  2. Step 2: Convert to fraction form
    28,058.26/38,727.05 = 16,128.53/x
  3. Step 3: Cross multiply
    28,058.26x = 38,727.05 × 16,128.53
  4. Step 4: Simplify right side
    28,058.26x = 624,610,319.17
  5. Step 5: Solve for x
    x = 624,610,319.17/28,058.26
  6. Step 6: Final answer
    x = 22,261.19

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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.