Home / 30,136.15-41,579.65-18,807.47

Finding the Fourth Proportional to 30,136.15, 41,579.65 and 18,807.47

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Solution

The fourth proportional to 30,136.15, 41,579.65 and 18,807.47 is: 25,949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,136.15 : 41,579.65 = 18,807.47 : x
  2. Step 2: Convert to fraction form
    30,136.15/41,579.65 = 18,807.47/x
  3. Step 3: Cross multiply
    30,136.15x = 41,579.65 × 18,807.47
  4. Step 4: Simplify right side
    30,136.15x = 782,008,019.99
  5. Step 5: Solve for x
    x = 782,008,019.99/30,136.15
  6. Step 6: Final answer
    x = 25,949.17

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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.