Home / 28,503.13-42,755.30-9,783.08

Finding the Fourth Proportional to 28,503.13, 42,755.30 and 9,783.08

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Solution

The fourth proportional to 28,503.13, 42,755.30 and 9,783.08 is: 14,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.13 : 42,755.30 = 9,783.08 : x
  2. Step 2: Convert to fraction form
    28,503.13/42,755.30 = 9,783.08/x
  3. Step 3: Cross multiply
    28,503.13x = 42,755.30 × 9,783.08
  4. Step 4: Simplify right side
    28,503.13x = 418,278,471.41
  5. Step 5: Solve for x
    x = 418,278,471.41/28,503.13
  6. Step 6: Final answer
    x = 14,674.83

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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.