Home / 28,305.84-42,470.19-11,674.20

Finding the Fourth Proportional to 28,305.84, 42,470.19 and 11,674.20

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Solution

The fourth proportional to 28,305.84, 42,470.19 and 11,674.20 is: 17,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.84 : 42,470.19 = 11,674.20 : x
  2. Step 2: Convert to fraction form
    28,305.84/42,470.19 = 11,674.20/x
  3. Step 3: Cross multiply
    28,305.84x = 42,470.19 × 11,674.20
  4. Step 4: Simplify right side
    28,305.84x = 495,805,492.10
  5. Step 5: Solve for x
    x = 495,805,492.10/28,305.84
  6. Step 6: Final answer
    x = 17,516.01

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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.