Home / 31,330.09-46,999.54-9,145.10

Finding the Fourth Proportional to 31,330.09, 46,999.54 and 9,145.10

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Solution

The fourth proportional to 31,330.09, 46,999.54 and 9,145.10 is: 13,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,330.09 : 46,999.54 = 9,145.10 : x
  2. Step 2: Convert to fraction form
    31,330.09/46,999.54 = 9,145.10/x
  3. Step 3: Cross multiply
    31,330.09x = 46,999.54 × 9,145.10
  4. Step 4: Simplify right side
    31,330.09x = 429,815,622.18
  5. Step 5: Solve for x
    x = 429,815,622.18/31,330.09
  6. Step 6: Final answer
    x = 13,718.94

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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.