Home / 21,989.07-30,316.38-14,017.46

Finding the Fourth Proportional to 21,989.07, 30,316.38 and 14,017.46

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Solution

The fourth proportional to 21,989.07, 30,316.38 and 14,017.46 is: 19,325.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989.07 : 30,316.38 = 14,017.46 : x
  2. Step 2: Convert to fraction form
    21,989.07/30,316.38 = 14,017.46/x
  3. Step 3: Cross multiply
    21,989.07x = 30,316.38 × 14,017.46
  4. Step 4: Simplify right side
    21,989.07x = 424,958,439.85
  5. Step 5: Solve for x
    x = 424,958,439.85/21,989.07
  6. Step 6: Final answer
    x = 19,325.89

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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.