Home / 28,288.35-42,441.74-13,495.34

Finding the Fourth Proportional to 28,288.35, 42,441.74 and 13,495.34

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Solution

The fourth proportional to 28,288.35, 42,441.74 and 13,495.34 is: 20,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.35 : 42,441.74 = 13,495.34 : x
  2. Step 2: Convert to fraction form
    28,288.35/42,441.74 = 13,495.34/x
  3. Step 3: Cross multiply
    28,288.35x = 42,441.74 × 13,495.34
  4. Step 4: Simplify right side
    28,288.35x = 572,765,431.81
  5. Step 5: Solve for x
    x = 572,765,431.81/28,288.35
  6. Step 6: Final answer
    x = 20,247.40

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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.