Home / 28,151.54-42,168.81-13,372.10

Finding the Fourth Proportional to 28,151.54, 42,168.81 and 13,372.10

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Solution

The fourth proportional to 28,151.54, 42,168.81 and 13,372.10 is: 20,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.54 : 42,168.81 = 13,372.10 : x
  2. Step 2: Convert to fraction form
    28,151.54/42,168.81 = 13,372.10/x
  3. Step 3: Cross multiply
    28,151.54x = 42,168.81 × 13,372.10
  4. Step 4: Simplify right side
    28,151.54x = 563,885,544.20
  5. Step 5: Solve for x
    x = 563,885,544.20/28,151.54
  6. Step 6: Final answer
    x = 20,030.36

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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.