Home / 30,987.12-46,461.96-12,497.52

Finding the Fourth Proportional to 30,987.12, 46,461.96 and 12,497.52

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Solution

The fourth proportional to 30,987.12, 46,461.96 and 12,497.52 is: 18,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.12 : 46,461.96 = 12,497.52 : x
  2. Step 2: Convert to fraction form
    30,987.12/46,461.96 = 12,497.52/x
  3. Step 3: Cross multiply
    30,987.12x = 46,461.96 × 12,497.52
  4. Step 4: Simplify right side
    30,987.12x = 580,659,274.34
  5. Step 5: Solve for x
    x = 580,659,274.34/30,987.12
  6. Step 6: Final answer
    x = 18,738.73

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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.