Home / 30,834.15-42,515.66-22,779.46

Finding the Fourth Proportional to 30,834.15, 42,515.66 and 22,779.46

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Solution

The fourth proportional to 30,834.15, 42,515.66 and 22,779.46 is: 31,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.15 : 42,515.66 = 22,779.46 : x
  2. Step 2: Convert to fraction form
    30,834.15/42,515.66 = 22,779.46/x
  3. Step 3: Cross multiply
    30,834.15x = 42,515.66 × 22,779.46
  4. Step 4: Simplify right side
    30,834.15x = 968,483,776.34
  5. Step 5: Solve for x
    x = 968,483,776.34/30,834.15
  6. Step 6: Final answer
    x = 31,409.45

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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.