Home / 20,531.49-28,300.10-16,047.33

Finding the Fourth Proportional to 20,531.49, 28,300.10 and 16,047.33

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Solution

The fourth proportional to 20,531.49, 28,300.10 and 16,047.33 is: 22,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.49 : 28,300.10 = 16,047.33 : x
  2. Step 2: Convert to fraction form
    20,531.49/28,300.10 = 16,047.33/x
  3. Step 3: Cross multiply
    20,531.49x = 28,300.10 × 16,047.33
  4. Step 4: Simplify right side
    20,531.49x = 454,140,963.50
  5. Step 5: Solve for x
    x = 454,140,963.50/20,531.49
  6. Step 6: Final answer
    x = 22,119.24

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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.