Home / 19,981.73-29,971.88-4,988.93

Finding the Fourth Proportional to 19,981.73, 29,971.88 and 4,988.93

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Solution

The fourth proportional to 19,981.73, 29,971.88 and 4,988.93 is: 7,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.73 : 29,971.88 = 4,988.93 : x
  2. Step 2: Convert to fraction form
    19,981.73/29,971.88 = 4,988.93/x
  3. Step 3: Cross multiply
    19,981.73x = 29,971.88 × 4,988.93
  4. Step 4: Simplify right side
    19,981.73x = 149,527,708.04
  5. Step 5: Solve for x
    x = 149,527,708.04/19,981.73
  6. Step 6: Final answer
    x = 7,483.22

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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.