Home / 28,148.06-38,827.40-18,588.03

Finding the Fourth Proportional to 28,148.06, 38,827.40 and 18,588.03

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Solution

The fourth proportional to 28,148.06, 38,827.40 and 18,588.03 is: 25,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.06 : 38,827.40 = 18,588.03 : x
  2. Step 2: Convert to fraction form
    28,148.06/38,827.40 = 18,588.03/x
  3. Step 3: Cross multiply
    28,148.06x = 38,827.40 × 18,588.03
  4. Step 4: Simplify right side
    28,148.06x = 721,724,783.08
  5. Step 5: Solve for x
    x = 721,724,783.08/28,148.06
  6. Step 6: Final answer
    x = 25,640.31

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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.