Home / 20,370.24-30,543.84-12,051.36

Finding the Fourth Proportional to 20,370.24, 30,543.84 and 12,051.36

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Solution

The fourth proportional to 20,370.24, 30,543.84 and 12,051.36 is: 18,070.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.24 : 30,543.84 = 12,051.36 : x
  2. Step 2: Convert to fraction form
    20,370.24/30,543.84 = 12,051.36/x
  3. Step 3: Cross multiply
    20,370.24x = 30,543.84 × 12,051.36
  4. Step 4: Simplify right side
    20,370.24x = 368,094,811.62
  5. Step 5: Solve for x
    x = 368,094,811.62/20,370.24
  6. Step 6: Final answer
    x = 18,070.22

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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.