Home / 28,110.80-42,204.60-14,269.52

Finding the Fourth Proportional to 28,110.80, 42,204.60 and 14,269.52

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Solution

The fourth proportional to 28,110.80, 42,204.60 and 14,269.52 is: 21,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.80 : 42,204.60 = 14,269.52 : x
  2. Step 2: Convert to fraction form
    28,110.80/42,204.60 = 14,269.52/x
  3. Step 3: Cross multiply
    28,110.80x = 42,204.60 × 14,269.52
  4. Step 4: Simplify right side
    28,110.80x = 602,239,383.79
  5. Step 5: Solve for x
    x = 602,239,383.79/28,110.80
  6. Step 6: Final answer
    x = 21,423.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.