Home / 30,771.81-46,139.23-12,029.52

Finding the Fourth Proportional to 30,771.81, 46,139.23 and 12,029.52

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Solution

The fourth proportional to 30,771.81, 46,139.23 and 12,029.52 is: 18,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,771.81 : 46,139.23 = 12,029.52 : x
  2. Step 2: Convert to fraction form
    30,771.81/46,139.23 = 12,029.52/x
  3. Step 3: Cross multiply
    30,771.81x = 46,139.23 × 12,029.52
  4. Step 4: Simplify right side
    30,771.81x = 555,032,905.42
  5. Step 5: Solve for x
    x = 555,032,905.42/30,771.81
  6. Step 6: Final answer
    x = 18,037.06

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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.