Home / 28,019.19-42,015.07-9,292.93

Finding the Fourth Proportional to 28,019.19, 42,015.07 and 9,292.93

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Solution

The fourth proportional to 28,019.19, 42,015.07 and 9,292.93 is: 13,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.19 : 42,015.07 = 9,292.93 : x
  2. Step 2: Convert to fraction form
    28,019.19/42,015.07 = 9,292.93/x
  3. Step 3: Cross multiply
    28,019.19x = 42,015.07 × 9,292.93
  4. Step 4: Simplify right side
    28,019.19x = 390,443,104.46
  5. Step 5: Solve for x
    x = 390,443,104.46/28,019.19
  6. Step 6: Final answer
    x = 13,934.85

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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.