Home / 30,611.79-45,898.56-12,837.69

Finding the Fourth Proportional to 30,611.79, 45,898.56 and 12,837.69

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Solution

The fourth proportional to 30,611.79, 45,898.56 and 12,837.69 is: 19,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.79 : 45,898.56 = 12,837.69 : x
  2. Step 2: Convert to fraction form
    30,611.79/45,898.56 = 12,837.69/x
  3. Step 3: Cross multiply
    30,611.79x = 45,898.56 × 12,837.69
  4. Step 4: Simplify right side
    30,611.79x = 589,231,484.73
  5. Step 5: Solve for x
    x = 589,231,484.73/30,611.79
  6. Step 6: Final answer
    x = 19,248.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.