Home / 30,327.12-45,516.24-12,809.52

Finding the Fourth Proportional to 30,327.12, 45,516.24 and 12,809.52

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Solution

The fourth proportional to 30,327.12, 45,516.24 and 12,809.52 is: 19,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327.12 : 45,516.24 = 12,809.52 : x
  2. Step 2: Convert to fraction form
    30,327.12/45,516.24 = 12,809.52/x
  3. Step 3: Cross multiply
    30,327.12x = 45,516.24 × 12,809.52
  4. Step 4: Simplify right side
    30,327.12x = 583,041,186.60
  5. Step 5: Solve for x
    x = 583,041,186.60/30,327.12
  6. Step 6: Final answer
    x = 19,225.08

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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.