Home / 28,564.50-42,874.46-13,783.83

Finding the Fourth Proportional to 28,564.50, 42,874.46 and 13,783.83

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Solution

The fourth proportional to 28,564.50, 42,874.46 and 13,783.83 is: 20,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.50 : 42,874.46 = 13,783.83 : x
  2. Step 2: Convert to fraction form
    28,564.50/42,874.46 = 13,783.83/x
  3. Step 3: Cross multiply
    28,564.50x = 42,874.46 × 13,783.83
  4. Step 4: Simplify right side
    28,564.50x = 590,974,267.98
  5. Step 5: Solve for x
    x = 590,974,267.98/28,564.50
  6. Step 6: Final answer
    x = 20,689.12

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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.