Home / 30,987.79-46,481.31-11,266.18

Finding the Fourth Proportional to 30,987.79, 46,481.31 and 11,266.18

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Solution

The fourth proportional to 30,987.79, 46,481.31 and 11,266.18 is: 16,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.79 : 46,481.31 = 11,266.18 : x
  2. Step 2: Convert to fraction form
    30,987.79/46,481.31 = 11,266.18/x
  3. Step 3: Cross multiply
    30,987.79x = 46,481.31 × 11,266.18
  4. Step 4: Simplify right side
    30,987.79x = 523,666,805.10
  5. Step 5: Solve for x
    x = 523,666,805.10/30,987.79
  6. Step 6: Final answer
    x = 16,899.13

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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.