Home / 28,275.84-42,415.16-10,747.04

Finding the Fourth Proportional to 28,275.84, 42,415.16 and 10,747.04

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Solution

The fourth proportional to 28,275.84, 42,415.16 and 10,747.04 is: 16,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.84 : 42,415.16 = 10,747.04 : x
  2. Step 2: Convert to fraction form
    28,275.84/42,415.16 = 10,747.04/x
  3. Step 3: Cross multiply
    28,275.84x = 42,415.16 × 10,747.04
  4. Step 4: Simplify right side
    28,275.84x = 455,837,421.13
  5. Step 5: Solve for x
    x = 455,837,421.13/28,275.84
  6. Step 6: Final answer
    x = 16,121.09

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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.