Home / 30,985.78-46,479.76-9,923.08

Finding the Fourth Proportional to 30,985.78, 46,479.76 and 9,923.08

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Solution

The fourth proportional to 30,985.78, 46,479.76 and 9,923.08 is: 14,884.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.78 : 46,479.76 = 9,923.08 : x
  2. Step 2: Convert to fraction form
    30,985.78/46,479.76 = 9,923.08/x
  3. Step 3: Cross multiply
    30,985.78x = 46,479.76 × 9,923.08
  4. Step 4: Simplify right side
    30,985.78x = 461,222,401.67
  5. Step 5: Solve for x
    x = 461,222,401.67/30,985.78
  6. Step 6: Final answer
    x = 14,884.97

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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.