Home / 19,240.16-28,828.20-18,510.80

Finding the Fourth Proportional to 19,240.16, 28,828.20 and 18,510.80

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Solution

The fourth proportional to 19,240.16, 28,828.20 and 18,510.80 is: 27,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.16 : 28,828.20 = 18,510.80 : x
  2. Step 2: Convert to fraction form
    19,240.16/28,828.20 = 18,510.80/x
  3. Step 3: Cross multiply
    19,240.16x = 28,828.20 × 18,510.80
  4. Step 4: Simplify right side
    19,240.16x = 533,633,044.56
  5. Step 5: Solve for x
    x = 533,633,044.56/19,240.16
  6. Step 6: Final answer
    x = 27,735.37

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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.