Home / 28,503.45-42,756.05-9,783.22

Finding the Fourth Proportional to 28,503.45, 42,756.05 and 9,783.22

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Solution

The fourth proportional to 28,503.45, 42,756.05 and 9,783.22 is: 14,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.45 : 42,756.05 = 9,783.22 : x
  2. Step 2: Convert to fraction form
    28,503.45/42,756.05 = 9,783.22/x
  3. Step 3: Cross multiply
    28,503.45x = 42,756.05 × 9,783.22
  4. Step 4: Simplify right side
    28,503.45x = 418,291,884.70
  5. Step 5: Solve for x
    x = 418,291,884.70/28,503.45
  6. Step 6: Final answer
    x = 14,675.13

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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.