Home / 28,463.02-42,695.75-8,742.36

Finding the Fourth Proportional to 28,463.02, 42,695.75 and 8,742.36

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Solution

The fourth proportional to 28,463.02, 42,695.75 and 8,742.36 is: 13,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.02 : 42,695.75 = 8,742.36 : x
  2. Step 2: Convert to fraction form
    28,463.02/42,695.75 = 8,742.36/x
  3. Step 3: Cross multiply
    28,463.02x = 42,695.75 × 8,742.36
  4. Step 4: Simplify right side
    28,463.02x = 373,261,616.97
  5. Step 5: Solve for x
    x = 373,261,616.97/28,463.02
  6. Step 6: Final answer
    x = 13,113.91

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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.