Home / 30,609.81-42,226.45-19,266.57

Finding the Fourth Proportional to 30,609.81, 42,226.45 and 19,266.57

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Solution

The fourth proportional to 30,609.81, 42,226.45 and 19,266.57 is: 26,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.81 : 42,226.45 = 19,266.57 : x
  2. Step 2: Convert to fraction form
    30,609.81/42,226.45 = 19,266.57/x
  3. Step 3: Cross multiply
    30,609.81x = 42,226.45 × 19,266.57
  4. Step 4: Simplify right side
    30,609.81x = 813,558,806.61
  5. Step 5: Solve for x
    x = 813,558,806.61/30,609.81
  6. Step 6: Final answer
    x = 26,578.37

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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.