Home / 28,155.54-42,174.81-13,376.10

Finding the Fourth Proportional to 28,155.54, 42,174.81 and 13,376.10

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Solution

The fourth proportional to 28,155.54, 42,174.81 and 13,376.10 is: 20,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.54 : 42,174.81 = 13,376.10 : x
  2. Step 2: Convert to fraction form
    28,155.54/42,174.81 = 13,376.10/x
  3. Step 3: Cross multiply
    28,155.54x = 42,174.81 × 13,376.10
  4. Step 4: Simplify right side
    28,155.54x = 564,134,476.04
  5. Step 5: Solve for x
    x = 564,134,476.04/28,155.54
  6. Step 6: Final answer
    x = 20,036.36

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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.