Home / 28,071.90-42,112.26-10,543.02

Finding the Fourth Proportional to 28,071.90, 42,112.26 and 10,543.02

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Solution

The fourth proportional to 28,071.90, 42,112.26 and 10,543.02 is: 15,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.90 : 42,112.26 = 10,543.02 : x
  2. Step 2: Convert to fraction form
    28,071.90/42,112.26 = 10,543.02/x
  3. Step 3: Cross multiply
    28,071.90x = 42,112.26 × 10,543.02
  4. Step 4: Simplify right side
    28,071.90x = 443,990,399.43
  5. Step 5: Solve for x
    x = 443,990,399.43/28,071.90
  6. Step 6: Final answer
    x = 15,816.19

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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.