Home / 28,071.56-42,085.74-11,202.68

Finding the Fourth Proportional to 28,071.56, 42,085.74 and 11,202.68

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Solution

The fourth proportional to 28,071.56, 42,085.74 and 11,202.68 is: 16,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.56 : 42,085.74 = 11,202.68 : x
  2. Step 2: Convert to fraction form
    28,071.56/42,085.74 = 11,202.68/x
  3. Step 3: Cross multiply
    28,071.56x = 42,085.74 × 11,202.68
  4. Step 4: Simplify right side
    28,071.56x = 471,473,077.78
  5. Step 5: Solve for x
    x = 471,473,077.78/28,071.56
  6. Step 6: Final answer
    x = 16,795.40

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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.