Home / 28,518.03-42,741.41-13,722.98

Finding the Fourth Proportional to 28,518.03, 42,741.41 and 13,722.98

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Solution

The fourth proportional to 28,518.03, 42,741.41 and 13,722.98 is: 20,567.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.03 : 42,741.41 = 13,722.98 : x
  2. Step 2: Convert to fraction form
    28,518.03/42,741.41 = 13,722.98/x
  3. Step 3: Cross multiply
    28,518.03x = 42,741.41 × 13,722.98
  4. Step 4: Simplify right side
    28,518.03x = 586,539,232.28
  5. Step 5: Solve for x
    x = 586,539,232.28/28,518.03
  6. Step 6: Final answer
    x = 20,567.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.