Home / 42,426.87-63,640.31-12,844.67

Finding the Fourth Proportional to 42,426.87, 63,640.31 and 12,844.67

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Solution

The fourth proportional to 42,426.87, 63,640.31 and 12,844.67 is: 19,267.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.87 : 63,640.31 = 12,844.67 : x
  2. Step 2: Convert to fraction form
    42,426.87/63,640.31 = 12,844.67/x
  3. Step 3: Cross multiply
    42,426.87x = 63,640.31 × 12,844.67
  4. Step 4: Simplify right side
    42,426.87x = 817,438,398.22
  5. Step 5: Solve for x
    x = 817,438,398.22/42,426.87
  6. Step 6: Final answer
    x = 19,267.00

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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.