Home / 28,431.43-42,656.58-8,710.18

Finding the Fourth Proportional to 28,431.43, 42,656.58 and 8,710.18

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Solution

The fourth proportional to 28,431.43, 42,656.58 and 8,710.18 is: 13,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.43 : 42,656.58 = 8,710.18 : x
  2. Step 2: Convert to fraction form
    28,431.43/42,656.58 = 8,710.18/x
  3. Step 3: Cross multiply
    28,431.43x = 42,656.58 × 8,710.18
  4. Step 4: Simplify right side
    28,431.43x = 371,546,489.98
  5. Step 5: Solve for x
    x = 371,546,489.98/28,431.43
  6. Step 6: Final answer
    x = 13,068.16

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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.