Home / 30,246.40-45,331.26-12,695.86

Finding the Fourth Proportional to 30,246.40, 45,331.26 and 12,695.86

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Solution

The fourth proportional to 30,246.40, 45,331.26 and 12,695.86 is: 19,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.40 : 45,331.26 = 12,695.86 : x
  2. Step 2: Convert to fraction form
    30,246.40/45,331.26 = 12,695.86/x
  3. Step 3: Cross multiply
    30,246.40x = 45,331.26 × 12,695.86
  4. Step 4: Simplify right side
    30,246.40x = 575,519,330.58
  5. Step 5: Solve for x
    x = 575,519,330.58/30,246.40
  6. Step 6: Final answer
    x = 19,027.70

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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.