Home / 28,175.94-42,285.33-10,423.40

Finding the Fourth Proportional to 28,175.94, 42,285.33 and 10,423.40

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Solution

The fourth proportional to 28,175.94, 42,285.33 and 10,423.40 is: 15,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.94 : 42,285.33 = 10,423.40 : x
  2. Step 2: Convert to fraction form
    28,175.94/42,285.33 = 10,423.40/x
  3. Step 3: Cross multiply
    28,175.94x = 42,285.33 × 10,423.40
  4. Step 4: Simplify right side
    28,175.94x = 440,756,908.72
  5. Step 5: Solve for x
    x = 440,756,908.72/28,175.94
  6. Step 6: Final answer
    x = 15,643.02

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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.