Home / 19,017.21-28,523.38-4,978.20

Finding the Fourth Proportional to 19,017.21, 28,523.38 and 4,978.20

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Solution

The fourth proportional to 19,017.21, 28,523.38 and 4,978.20 is: 7,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.21 : 28,523.38 = 4,978.20 : x
  2. Step 2: Convert to fraction form
    19,017.21/28,523.38 = 4,978.20/x
  3. Step 3: Cross multiply
    19,017.21x = 28,523.38 × 4,978.20
  4. Step 4: Simplify right side
    19,017.21x = 141,995,090.32
  5. Step 5: Solve for x
    x = 141,995,090.32/19,017.21
  6. Step 6: Final answer
    x = 7,466.66

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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.