Home / 42,368.08-63,552.58-12,786.20

Finding the Fourth Proportional to 42,368.08, 63,552.58 and 12,786.20

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Solution

The fourth proportional to 42,368.08, 63,552.58 and 12,786.20 is: 19,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.08 : 63,552.58 = 12,786.20 : x
  2. Step 2: Convert to fraction form
    42,368.08/63,552.58 = 12,786.20/x
  3. Step 3: Cross multiply
    42,368.08x = 63,552.58 × 12,786.20
  4. Step 4: Simplify right side
    42,368.08x = 812,595,998.40
  5. Step 5: Solve for x
    x = 812,595,998.40/42,368.08
  6. Step 6: Final answer
    x = 19,179.44

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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.