Home / 19,153.68-28,731-5,302.80

Finding the Fourth Proportional to 19,153.68, 28,731 and 5,302.80

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Solution

The fourth proportional to 19,153.68, 28,731 and 5,302.80 is: 7,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153.68 : 28,731 = 5,302.80 : x
  2. Step 2: Convert to fraction form
    19,153.68/28,731 = 5,302.80/x
  3. Step 3: Cross multiply
    19,153.68x = 28,731 × 5,302.80
  4. Step 4: Simplify right side
    19,153.68x = 152,354,746.80
  5. Step 5: Solve for x
    x = 152,354,746.80/19,153.68
  6. Step 6: Final answer
    x = 7,954.33

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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.