Home / 30,739.10-46,088.39-12,021.21

Finding the Fourth Proportional to 30,739.10, 46,088.39 and 12,021.21

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Solution

The fourth proportional to 30,739.10, 46,088.39 and 12,021.21 is: 18,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,739.10 : 46,088.39 = 12,021.21 : x
  2. Step 2: Convert to fraction form
    30,739.10/46,088.39 = 12,021.21/x
  3. Step 3: Cross multiply
    30,739.10x = 46,088.39 × 12,021.21
  4. Step 4: Simplify right side
    30,739.10x = 554,038,244.80
  5. Step 5: Solve for x
    x = 554,038,244.80/30,739.10
  6. Step 6: Final answer
    x = 18,023.90

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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.