Home / 42,368.70-63,511.74-20,176.12

Finding the Fourth Proportional to 42,368.70, 63,511.74 and 20,176.12

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Solution

The fourth proportional to 42,368.70, 63,511.74 and 20,176.12 is: 30,244.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.70 : 63,511.74 = 20,176.12 : x
  2. Step 2: Convert to fraction form
    42,368.70/63,511.74 = 20,176.12/x
  3. Step 3: Cross multiply
    42,368.70x = 63,511.74 × 20,176.12
  4. Step 4: Simplify right side
    42,368.70x = 1,281,420,487.65
  5. Step 5: Solve for x
    x = 1,281,420,487.65/42,368.70
  6. Step 6: Final answer
    x = 30,244.51

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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.