Home / 28,835.68-39,677.68-22,118.64

Finding the Fourth Proportional to 28,835.68, 39,677.68 and 22,118.64

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Solution

The fourth proportional to 28,835.68, 39,677.68 and 22,118.64 is: 30,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.68 : 39,677.68 = 22,118.64 : x
  2. Step 2: Convert to fraction form
    28,835.68/39,677.68 = 22,118.64/x
  3. Step 3: Cross multiply
    28,835.68x = 39,677.68 × 22,118.64
  4. Step 4: Simplify right side
    28,835.68x = 877,616,319.96
  5. Step 5: Solve for x
    x = 877,616,319.96/28,835.68
  6. Step 6: Final answer
    x = 30,435.08

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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.