Home / 18,509.49-25,478.91-16,147.53

Finding the Fourth Proportional to 18,509.49, 25,478.91 and 16,147.53

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Solution

The fourth proportional to 18,509.49, 25,478.91 and 16,147.53 is: 22,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.49 : 25,478.91 = 16,147.53 : x
  2. Step 2: Convert to fraction form
    18,509.49/25,478.91 = 16,147.53/x
  3. Step 3: Cross multiply
    18,509.49x = 25,478.91 × 16,147.53
  4. Step 4: Simplify right side
    18,509.49x = 411,421,463.59
  5. Step 5: Solve for x
    x = 411,421,463.59/18,509.49
  6. Step 6: Final answer
    x = 22,227.60

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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.