Home / 28,158.03-38,848.59-16,221.06

Finding the Fourth Proportional to 28,158.03, 38,848.59 and 16,221.06

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Solution

The fourth proportional to 28,158.03, 38,848.59 and 16,221.06 is: 22,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.03 : 38,848.59 = 16,221.06 : x
  2. Step 2: Convert to fraction form
    28,158.03/38,848.59 = 16,221.06/x
  3. Step 3: Cross multiply
    28,158.03x = 38,848.59 × 16,221.06
  4. Step 4: Simplify right side
    28,158.03x = 630,165,309.31
  5. Step 5: Solve for x
    x = 630,165,309.31/28,158.03
  6. Step 6: Final answer
    x = 22,379.60

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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.