Home / 28,307.57-42,446.78-10,530.91

Finding the Fourth Proportional to 28,307.57, 42,446.78 and 10,530.91

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Solution

The fourth proportional to 28,307.57, 42,446.78 and 10,530.91 is: 15,790.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.57 : 42,446.78 = 10,530.91 : x
  2. Step 2: Convert to fraction form
    28,307.57/42,446.78 = 10,530.91/x
  3. Step 3: Cross multiply
    28,307.57x = 42,446.78 × 10,530.91
  4. Step 4: Simplify right side
    28,307.57x = 447,002,955.08
  5. Step 5: Solve for x
    x = 447,002,955.08/28,307.57
  6. Step 6: Final answer
    x = 15,790.93

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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.