Home / 31,382.18-43,307.35-17,235.02

Finding the Fourth Proportional to 31,382.18, 43,307.35 and 17,235.02

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Solution

The fourth proportional to 31,382.18, 43,307.35 and 17,235.02 is: 23,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.18 : 43,307.35 = 17,235.02 : x
  2. Step 2: Convert to fraction form
    31,382.18/43,307.35 = 17,235.02/x
  3. Step 3: Cross multiply
    31,382.18x = 43,307.35 × 17,235.02
  4. Step 4: Simplify right side
    31,382.18x = 746,402,740.69
  5. Step 5: Solve for x
    x = 746,402,740.69/31,382.18
  6. Step 6: Final answer
    x = 23,784.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.