Home / 30,156.96-41,635.80-19,406.64

Finding the Fourth Proportional to 30,156.96, 41,635.80 and 19,406.64

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Solution

The fourth proportional to 30,156.96, 41,635.80 and 19,406.64 is: 26,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.96 : 41,635.80 = 19,406.64 : x
  2. Step 2: Convert to fraction form
    30,156.96/41,635.80 = 19,406.64/x
  3. Step 3: Cross multiply
    30,156.96x = 41,635.80 × 19,406.64
  4. Step 4: Simplify right side
    30,156.96x = 808,010,981.71
  5. Step 5: Solve for x
    x = 808,010,981.71/30,156.96
  6. Step 6: Final answer
    x = 26,793.52

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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.