Home / 28,008.13-42,019.38-9,293.41

Finding the Fourth Proportional to 28,008.13, 42,019.38 and 9,293.41

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Solution

The fourth proportional to 28,008.13, 42,019.38 and 9,293.41 is: 13,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.13 : 42,019.38 = 9,293.41 : x
  2. Step 2: Convert to fraction form
    28,008.13/42,019.38 = 9,293.41/x
  3. Step 3: Cross multiply
    28,008.13x = 42,019.38 × 9,293.41
  4. Step 4: Simplify right side
    28,008.13x = 390,503,326.29
  5. Step 5: Solve for x
    x = 390,503,326.29/28,008.13
  6. Step 6: Final answer
    x = 13,942.50

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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.