Home / 28,017.10-38,646.75-22,039.30

Finding the Fourth Proportional to 28,017.10, 38,646.75 and 22,039.30

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Solution

The fourth proportional to 28,017.10, 38,646.75 and 22,039.30 is: 30,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.10 : 38,646.75 = 22,039.30 : x
  2. Step 2: Convert to fraction form
    28,017.10/38,646.75 = 22,039.30/x
  3. Step 3: Cross multiply
    28,017.10x = 38,646.75 × 22,039.30
  4. Step 4: Simplify right side
    28,017.10x = 851,747,317.28
  5. Step 5: Solve for x
    x = 851,747,317.28/28,017.10
  6. Step 6: Final answer
    x = 30,400.98

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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.