Home / 28,090.55-38,780.53-19,151.19

Finding the Fourth Proportional to 28,090.55, 38,780.53 and 19,151.19

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Solution

The fourth proportional to 28,090.55, 38,780.53 and 19,151.19 is: 26,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.55 : 38,780.53 = 19,151.19 : x
  2. Step 2: Convert to fraction form
    28,090.55/38,780.53 = 19,151.19/x
  3. Step 3: Cross multiply
    28,090.55x = 38,780.53 × 19,151.19
  4. Step 4: Simplify right side
    28,090.55x = 742,693,298.33
  5. Step 5: Solve for x
    x = 742,693,298.33/28,090.55
  6. Step 6: Final answer
    x = 26,439.26

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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.