Home / 30,867.72-46,269.80-12,140.16

Finding the Fourth Proportional to 30,867.72, 46,269.80 and 12,140.16

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Solution

The fourth proportional to 30,867.72, 46,269.80 and 12,140.16 is: 18,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.72 : 46,269.80 = 12,140.16 : x
  2. Step 2: Convert to fraction form
    30,867.72/46,269.80 = 12,140.16/x
  3. Step 3: Cross multiply
    30,867.72x = 46,269.80 × 12,140.16
  4. Step 4: Simplify right side
    30,867.72x = 561,722,830.14
  5. Step 5: Solve for x
    x = 561,722,830.14/30,867.72
  6. Step 6: Final answer
    x = 18,197.74

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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.