Home / 28,607.02-42,899.73-13,811.02

Finding the Fourth Proportional to 28,607.02, 42,899.73 and 13,811.02

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Solution

The fourth proportional to 28,607.02, 42,899.73 and 13,811.02 is: 20,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.02 : 42,899.73 = 13,811.02 : x
  2. Step 2: Convert to fraction form
    28,607.02/42,899.73 = 13,811.02/x
  3. Step 3: Cross multiply
    28,607.02x = 42,899.73 × 13,811.02
  4. Step 4: Simplify right side
    28,607.02x = 592,489,029.02
  5. Step 5: Solve for x
    x = 592,489,029.02/28,607.02
  6. Step 6: Final answer
    x = 20,711.32

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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.