Home / 16,421.49-22,661.28-10,047.60

Finding the Fourth Proportional to 16,421.49, 22,661.28 and 10,047.60

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Solution

The fourth proportional to 16,421.49, 22,661.28 and 10,047.60 is: 13,865.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,421.49 : 22,661.28 = 10,047.60 : x
  2. Step 2: Convert to fraction form
    16,421.49/22,661.28 = 10,047.60/x
  3. Step 3: Cross multiply
    16,421.49x = 22,661.28 × 10,047.60
  4. Step 4: Simplify right side
    16,421.49x = 227,691,476.93
  5. Step 5: Solve for x
    x = 227,691,476.93/16,421.49
  6. Step 6: Final answer
    x = 13,865.46

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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.