Home / 28,167.93-42,267.48-11,539.64

Finding the Fourth Proportional to 28,167.93, 42,267.48 and 11,539.64

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Solution

The fourth proportional to 28,167.93, 42,267.48 and 11,539.64 is: 17,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.93 : 42,267.48 = 11,539.64 : x
  2. Step 2: Convert to fraction form
    28,167.93/42,267.48 = 11,539.64/x
  3. Step 3: Cross multiply
    28,167.93x = 42,267.48 × 11,539.64
  4. Step 4: Simplify right side
    28,167.93x = 487,751,502.91
  5. Step 5: Solve for x
    x = 487,751,502.91/28,167.93
  6. Step 6: Final answer
    x = 17,315.84

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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.