Home / 30,722.12-46,090.50-9,945.62

Finding the Fourth Proportional to 30,722.12, 46,090.50 and 9,945.62

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Solution

The fourth proportional to 30,722.12, 46,090.50 and 9,945.62 is: 14,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,722.12 : 46,090.50 = 9,945.62 : x
  2. Step 2: Convert to fraction form
    30,722.12/46,090.50 = 9,945.62/x
  3. Step 3: Cross multiply
    30,722.12x = 46,090.50 × 9,945.62
  4. Step 4: Simplify right side
    30,722.12x = 458,398,598.61
  5. Step 5: Solve for x
    x = 458,398,598.61/30,722.12
  6. Step 6: Final answer
    x = 14,920.80

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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.