Home / 28,313.56-42,503.15-15,191.56

Finding the Fourth Proportional to 28,313.56, 42,503.15 and 15,191.56

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Solution

The fourth proportional to 28,313.56, 42,503.15 and 15,191.56 is: 22,804.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.56 : 42,503.15 = 15,191.56 : x
  2. Step 2: Convert to fraction form
    28,313.56/42,503.15 = 15,191.56/x
  3. Step 3: Cross multiply
    28,313.56x = 42,503.15 × 15,191.56
  4. Step 4: Simplify right side
    28,313.56x = 645,689,039.53
  5. Step 5: Solve for x
    x = 645,689,039.53/28,313.56
  6. Step 6: Final answer
    x = 22,804.94

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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.