Home / 28,362.49-39,136.84-16,424.20

Finding the Fourth Proportional to 28,362.49, 39,136.84 and 16,424.20

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Solution

The fourth proportional to 28,362.49, 39,136.84 and 16,424.20 is: 22,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.49 : 39,136.84 = 16,424.20 : x
  2. Step 2: Convert to fraction form
    28,362.49/39,136.84 = 16,424.20/x
  3. Step 3: Cross multiply
    28,362.49x = 39,136.84 × 16,424.20
  4. Step 4: Simplify right side
    28,362.49x = 642,791,287.53
  5. Step 5: Solve for x
    x = 642,791,287.53/28,362.49
  6. Step 6: Final answer
    x = 22,663.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.