Home / 30,530.35-42,156.62-22,657.15

Finding the Fourth Proportional to 30,530.35, 42,156.62 and 22,657.15

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Solution

The fourth proportional to 30,530.35, 42,156.62 and 22,657.15 is: 31,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.35 : 42,156.62 = 22,657.15 : x
  2. Step 2: Convert to fraction form
    30,530.35/42,156.62 = 22,657.15/x
  3. Step 3: Cross multiply
    30,530.35x = 42,156.62 × 22,657.15
  4. Step 4: Simplify right side
    30,530.35x = 955,148,862.83
  5. Step 5: Solve for x
    x = 955,148,862.83/30,530.35
  6. Step 6: Final answer
    x = 31,285.22

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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.