Home / 28,620.34-42,945.09-13,035.94

Finding the Fourth Proportional to 28,620.34, 42,945.09 and 13,035.94

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Solution

The fourth proportional to 28,620.34, 42,945.09 and 13,035.94 is: 19,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.34 : 42,945.09 = 13,035.94 : x
  2. Step 2: Convert to fraction form
    28,620.34/42,945.09 = 13,035.94/x
  3. Step 3: Cross multiply
    28,620.34x = 42,945.09 × 13,035.94
  4. Step 4: Simplify right side
    28,620.34x = 559,829,616.53
  5. Step 5: Solve for x
    x = 559,829,616.53/28,620.34
  6. Step 6: Final answer
    x = 19,560.55

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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.