Home / 28,368.99-42,533.78-12,565.41

Finding the Fourth Proportional to 28,368.99, 42,533.78 and 12,565.41

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Solution

The fourth proportional to 28,368.99, 42,533.78 and 12,565.41 is: 18,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.99 : 42,533.78 = 12,565.41 : x
  2. Step 2: Convert to fraction form
    28,368.99/42,533.78 = 12,565.41/x
  3. Step 3: Cross multiply
    28,368.99x = 42,533.78 × 12,565.41
  4. Step 4: Simplify right side
    28,368.99x = 534,454,321.72
  5. Step 5: Solve for x
    x = 534,454,321.72/28,368.99
  6. Step 6: Final answer
    x = 18,839.38

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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.