Home / 28,028.28-42,048.48-9,314.30

Finding the Fourth Proportional to 28,028.28, 42,048.48 and 9,314.30

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Solution

The fourth proportional to 28,028.28, 42,048.48 and 9,314.30 is: 13,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.28 : 42,048.48 = 9,314.30 : x
  2. Step 2: Convert to fraction form
    28,028.28/42,048.48 = 9,314.30/x
  3. Step 3: Cross multiply
    28,028.28x = 42,048.48 × 9,314.30
  4. Step 4: Simplify right side
    28,028.28x = 391,652,157.26
  5. Step 5: Solve for x
    x = 391,652,157.26/28,028.28
  6. Step 6: Final answer
    x = 13,973.46

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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.