Home / 28,438.68-39,244.80-16,503.18

Finding the Fourth Proportional to 28,438.68, 39,244.80 and 16,503.18

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Solution

The fourth proportional to 28,438.68, 39,244.80 and 16,503.18 is: 22,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.68 : 39,244.80 = 16,503.18 : x
  2. Step 2: Convert to fraction form
    28,438.68/39,244.80 = 16,503.18/x
  3. Step 3: Cross multiply
    28,438.68x = 39,244.80 × 16,503.18
  4. Step 4: Simplify right side
    28,438.68x = 647,663,998.46
  5. Step 5: Solve for x
    x = 647,663,998.46/28,438.68
  6. Step 6: Final answer
    x = 22,774.05

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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.