Home / 28,390.26-42,541.58-17,980.14

Finding the Fourth Proportional to 28,390.26, 42,541.58 and 17,980.14

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Solution

The fourth proportional to 28,390.26, 42,541.58 and 17,980.14 is: 26,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.26 : 42,541.58 = 17,980.14 : x
  2. Step 2: Convert to fraction form
    28,390.26/42,541.58 = 17,980.14/x
  3. Step 3: Cross multiply
    28,390.26x = 42,541.58 × 17,980.14
  4. Step 4: Simplify right side
    28,390.26x = 764,903,564.22
  5. Step 5: Solve for x
    x = 764,903,564.22/28,390.26
  6. Step 6: Final answer
    x = 26,942.46

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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.