Home / 28,762.28-43,140.57-9,040.31

Finding the Fourth Proportional to 28,762.28, 43,140.57 and 9,040.31

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Solution

The fourth proportional to 28,762.28, 43,140.57 and 9,040.31 is: 13,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.28 : 43,140.57 = 9,040.31 : x
  2. Step 2: Convert to fraction form
    28,762.28/43,140.57 = 9,040.31/x
  3. Step 3: Cross multiply
    28,762.28x = 43,140.57 × 9,040.31
  4. Step 4: Simplify right side
    28,762.28x = 390,004,126.38
  5. Step 5: Solve for x
    x = 390,004,126.38/28,762.28
  6. Step 6: Final answer
    x = 13,559.57

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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.