Home / 28,173.60-42,266.61-10,643.58

Finding the Fourth Proportional to 28,173.60, 42,266.61 and 10,643.58

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Solution

The fourth proportional to 28,173.60, 42,266.61 and 10,643.58 is: 15,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.60 : 42,266.61 = 10,643.58 : x
  2. Step 2: Convert to fraction form
    28,173.60/42,266.61 = 10,643.58/x
  3. Step 3: Cross multiply
    28,173.60x = 42,266.61 × 10,643.58
  4. Step 4: Simplify right side
    28,173.60x = 449,868,044.86
  5. Step 5: Solve for x
    x = 449,868,044.86/28,173.60
  6. Step 6: Final answer
    x = 15,967.72

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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.