Home / 19,988.48-27,583.66-10,913.53

Finding the Fourth Proportional to 19,988.48, 27,583.66 and 10,913.53

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Solution

The fourth proportional to 19,988.48, 27,583.66 and 10,913.53 is: 15,060.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.48 : 27,583.66 = 10,913.53 : x
  2. Step 2: Convert to fraction form
    19,988.48/27,583.66 = 10,913.53/x
  3. Step 3: Cross multiply
    19,988.48x = 27,583.66 × 10,913.53
  4. Step 4: Simplify right side
    19,988.48x = 301,035,100.92
  5. Step 5: Solve for x
    x = 301,035,100.92/19,988.48
  6. Step 6: Final answer
    x = 15,060.43

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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.