Home / 28,117.92-42,184.16-13,326.50

Finding the Fourth Proportional to 28,117.92, 42,184.16 and 13,326.50

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Solution

The fourth proportional to 28,117.92, 42,184.16 and 13,326.50 is: 19,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.92 : 42,184.16 = 13,326.50 : x
  2. Step 2: Convert to fraction form
    28,117.92/42,184.16 = 13,326.50/x
  3. Step 3: Cross multiply
    28,117.92x = 42,184.16 × 13,326.50
  4. Step 4: Simplify right side
    28,117.92x = 562,167,208.24
  5. Step 5: Solve for x
    x = 562,167,208.24/28,117.92
  6. Step 6: Final answer
    x = 19,993.20

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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.