Home / 28,368.80-42,546.36-12,565.10

Finding the Fourth Proportional to 28,368.80, 42,546.36 and 12,565.10

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Solution

The fourth proportional to 28,368.80, 42,546.36 and 12,565.10 is: 18,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.80 : 42,546.36 = 12,565.10 : x
  2. Step 2: Convert to fraction form
    28,368.80/42,546.36 = 12,565.10/x
  3. Step 3: Cross multiply
    28,368.80x = 42,546.36 × 12,565.10
  4. Step 4: Simplify right side
    28,368.80x = 534,599,055.30
  5. Step 5: Solve for x
    x = 534,599,055.30/28,368.80
  6. Step 6: Final answer
    x = 18,844.62

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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.