Home / 30,655.44-42,292.26-19,321.92

Finding the Fourth Proportional to 30,655.44, 42,292.26 and 19,321.92

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Solution

The fourth proportional to 30,655.44, 42,292.26 and 19,321.92 is: 26,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.44 : 42,292.26 = 19,321.92 : x
  2. Step 2: Convert to fraction form
    30,655.44/42,292.26 = 19,321.92/x
  3. Step 3: Cross multiply
    30,655.44x = 42,292.26 × 19,321.92
  4. Step 4: Simplify right side
    30,655.44x = 817,167,664.34
  5. Step 5: Solve for x
    x = 817,167,664.34/30,655.44
  6. Step 6: Final answer
    x = 26,656.53

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Double scale
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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.