Home / 28,095.21-42,128.70-9,368.61

Finding the Fourth Proportional to 28,095.21, 42,128.70 and 9,368.61

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Solution

The fourth proportional to 28,095.21, 42,128.70 and 9,368.61 is: 14,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.21 : 42,128.70 = 9,368.61 : x
  2. Step 2: Convert to fraction form
    28,095.21/42,128.70 = 9,368.61/x
  3. Step 3: Cross multiply
    28,095.21x = 42,128.70 × 9,368.61
  4. Step 4: Simplify right side
    28,095.21x = 394,687,360.11
  5. Step 5: Solve for x
    x = 394,687,360.11/28,095.21
  6. Step 6: Final answer
    x = 14,048.21

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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.