Home / 30,649.32-45,951.14-12,885.18

Finding the Fourth Proportional to 30,649.32, 45,951.14 and 12,885.18

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Solution

The fourth proportional to 30,649.32, 45,951.14 and 12,885.18 is: 19,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,649.32 : 45,951.14 = 12,885.18 : x
  2. Step 2: Convert to fraction form
    30,649.32/45,951.14 = 12,885.18/x
  3. Step 3: Cross multiply
    30,649.32x = 45,951.14 × 12,885.18
  4. Step 4: Simplify right side
    30,649.32x = 592,088,645.68
  5. Step 5: Solve for x
    x = 592,088,645.68/30,649.32
  6. Step 6: Final answer
    x = 19,318.17

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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.