Home / 28,095.28-42,129.04-9,368.88

Finding the Fourth Proportional to 28,095.28, 42,129.04 and 9,368.88

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Solution

The fourth proportional to 28,095.28, 42,129.04 and 9,368.88 is: 14,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.28 : 42,129.04 = 9,368.88 : x
  2. Step 2: Convert to fraction form
    28,095.28/42,129.04 = 9,368.88/x
  3. Step 3: Cross multiply
    28,095.28x = 42,129.04 × 9,368.88
  4. Step 4: Simplify right side
    28,095.28x = 394,701,920.28
  5. Step 5: Solve for x
    x = 394,701,920.28/28,095.28
  6. Step 6: Final answer
    x = 14,048.69

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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.