Home / 28,365.84-42,500.16-20,030.94

Finding the Fourth Proportional to 28,365.84, 42,500.16 and 20,030.94

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Solution

The fourth proportional to 28,365.84, 42,500.16 and 20,030.94 is: 30,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.84 : 42,500.16 = 20,030.94 : x
  2. Step 2: Convert to fraction form
    28,365.84/42,500.16 = 20,030.94/x
  3. Step 3: Cross multiply
    28,365.84x = 42,500.16 × 20,030.94
  4. Step 4: Simplify right side
    28,365.84x = 851,318,154.95
  5. Step 5: Solve for x
    x = 851,318,154.95/28,365.84
  6. Step 6: Final answer
    x = 30,012.09

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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.