Home / 42,313.92-63,479.24-12,730.44

Finding the Fourth Proportional to 42,313.92, 63,479.24 and 12,730.44

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Solution

The fourth proportional to 42,313.92, 63,479.24 and 12,730.44 is: 19,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,313.92 : 63,479.24 = 12,730.44 : x
  2. Step 2: Convert to fraction form
    42,313.92/63,479.24 = 12,730.44/x
  3. Step 3: Cross multiply
    42,313.92x = 63,479.24 × 12,730.44
  4. Step 4: Simplify right side
    42,313.92x = 808,118,656.07
  5. Step 5: Solve for x
    x = 808,118,656.07/42,313.92
  6. Step 6: Final answer
    x = 19,098.18

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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.