Home / 28,307.89-42,461.38-7,247.75

Finding the Fourth Proportional to 28,307.89, 42,461.38 and 7,247.75

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Solution

The fourth proportional to 28,307.89, 42,461.38 and 7,247.75 is: 10,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.89 : 42,461.38 = 7,247.75 : x
  2. Step 2: Convert to fraction form
    28,307.89/42,461.38 = 7,247.75/x
  3. Step 3: Cross multiply
    28,307.89x = 42,461.38 × 7,247.75
  4. Step 4: Simplify right side
    28,307.89x = 307,749,466.90
  5. Step 5: Solve for x
    x = 307,749,466.90/28,307.89
  6. Step 6: Final answer
    x = 10,871.51

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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.