Home / 19,285.70-28,885.35-10,040.90

Finding the Fourth Proportional to 19,285.70, 28,885.35 and 10,040.90

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Solution

The fourth proportional to 19,285.70, 28,885.35 and 10,040.90 is: 15,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.70 : 28,885.35 = 10,040.90 : x
  2. Step 2: Convert to fraction form
    19,285.70/28,885.35 = 10,040.90/x
  3. Step 3: Cross multiply
    19,285.70x = 28,885.35 × 10,040.90
  4. Step 4: Simplify right side
    19,285.70x = 290,034,910.82
  5. Step 5: Solve for x
    x = 290,034,910.82/19,285.70
  6. Step 6: Final answer
    x = 15,038.86

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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.