Home / 28,049.02-42,041.20-11,390.75

Finding the Fourth Proportional to 28,049.02, 42,041.20 and 11,390.75

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Solution

The fourth proportional to 28,049.02, 42,041.20 and 11,390.75 is: 17,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.02 : 42,041.20 = 11,390.75 : x
  2. Step 2: Convert to fraction form
    28,049.02/42,041.20 = 11,390.75/x
  3. Step 3: Cross multiply
    28,049.02x = 42,041.20 × 11,390.75
  4. Step 4: Simplify right side
    28,049.02x = 478,880,798.90
  5. Step 5: Solve for x
    x = 478,880,798.90/28,049.02
  6. Step 6: Final answer
    x = 17,073.00

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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.