Home / 30,577.48-42,178.98-19,228.96

Finding the Fourth Proportional to 30,577.48, 42,178.98 and 19,228.96

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Solution

The fourth proportional to 30,577.48, 42,178.98 and 19,228.96 is: 26,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,577.48 : 42,178.98 = 19,228.96 : x
  2. Step 2: Convert to fraction form
    30,577.48/42,178.98 = 19,228.96/x
  3. Step 3: Cross multiply
    30,577.48x = 42,178.98 × 19,228.96
  4. Step 4: Simplify right side
    30,577.48x = 811,057,919.26
  5. Step 5: Solve for x
    x = 811,057,919.26/30,577.48
  6. Step 6: Final answer
    x = 26,524.68

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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.