Home / 30,834.28-42,515.83-22,779.59

Finding the Fourth Proportional to 30,834.28, 42,515.83 and 22,779.59

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Solution

The fourth proportional to 30,834.28, 42,515.83 and 22,779.59 is: 31,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.28 : 42,515.83 = 22,779.59 : x
  2. Step 2: Convert to fraction form
    30,834.28/42,515.83 = 22,779.59/x
  3. Step 3: Cross multiply
    30,834.28x = 42,515.83 × 22,779.59
  4. Step 4: Simplify right side
    30,834.28x = 968,493,225.25
  5. Step 5: Solve for x
    x = 968,493,225.25/30,834.28
  6. Step 6: Final answer
    x = 31,409.63

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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.