Home / 28,103.36-42,140.86-9,376.76

Finding the Fourth Proportional to 28,103.36, 42,140.86 and 9,376.76

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Solution

The fourth proportional to 28,103.36, 42,140.86 and 9,376.76 is: 14,060.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.36 : 42,140.86 = 9,376.76 : x
  2. Step 2: Convert to fraction form
    28,103.36/42,140.86 = 9,376.76/x
  3. Step 3: Cross multiply
    28,103.36x = 42,140.86 × 9,376.76
  4. Step 4: Simplify right side
    28,103.36x = 395,144,730.41
  5. Step 5: Solve for x
    x = 395,144,730.41/28,103.36
  6. Step 6: Final answer
    x = 14,060.41

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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.