Home / 28,934.39-43,387.23-9,210.38

Finding the Fourth Proportional to 28,934.39, 43,387.23 and 9,210.38

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Solution

The fourth proportional to 28,934.39, 43,387.23 and 9,210.38 is: 13,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,934.39 : 43,387.23 = 9,210.38 : x
  2. Step 2: Convert to fraction form
    28,934.39/43,387.23 = 9,210.38/x
  3. Step 3: Cross multiply
    28,934.39x = 43,387.23 × 9,210.38
  4. Step 4: Simplify right side
    28,934.39x = 399,612,960.89
  5. Step 5: Solve for x
    x = 399,612,960.89/28,934.39
  6. Step 6: Final answer
    x = 13,811.00

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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.