Home / 28,091.55-38,781.91-19,152.19

Finding the Fourth Proportional to 28,091.55, 38,781.91 and 19,152.19

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Solution

The fourth proportional to 28,091.55, 38,781.91 and 19,152.19 is: 26,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.55 : 38,781.91 = 19,152.19 : x
  2. Step 2: Convert to fraction form
    28,091.55/38,781.91 = 19,152.19/x
  3. Step 3: Cross multiply
    28,091.55x = 38,781.91 × 19,152.19
  4. Step 4: Simplify right side
    28,091.55x = 742,758,508.88
  5. Step 5: Solve for x
    x = 742,758,508.88/28,091.55
  6. Step 6: Final answer
    x = 26,440.64

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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.