Home / 28,026.47-42,035.28-7,758.44

Finding the Fourth Proportional to 28,026.47, 42,035.28 and 7,758.44

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Solution

The fourth proportional to 28,026.47, 42,035.28 and 7,758.44 is: 11,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.47 : 42,035.28 = 7,758.44 : x
  2. Step 2: Convert to fraction form
    28,026.47/42,035.28 = 7,758.44/x
  3. Step 3: Cross multiply
    28,026.47x = 42,035.28 × 7,758.44
  4. Step 4: Simplify right side
    28,026.47x = 326,128,197.76
  5. Step 5: Solve for x
    x = 326,128,197.76/28,026.47
  6. Step 6: Final answer
    x = 11,636.44

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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.