Home / 28,136.13-42,204.59-7,359.63

Finding the Fourth Proportional to 28,136.13, 42,204.59 and 7,359.63

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Solution

The fourth proportional to 28,136.13, 42,204.59 and 7,359.63 is: 11,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.13 : 42,204.59 = 7,359.63 : x
  2. Step 2: Convert to fraction form
    28,136.13/42,204.59 = 7,359.63/x
  3. Step 3: Cross multiply
    28,136.13x = 42,204.59 × 7,359.63
  4. Step 4: Simplify right side
    28,136.13x = 310,610,166.70
  5. Step 5: Solve for x
    x = 310,610,166.70/28,136.13
  6. Step 6: Final answer
    x = 11,039.55

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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.