Home / 15,420.02-23,130.89-4,889.30

Finding the Fourth Proportional to 15,420.02, 23,130.89 and 4,889.30

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Solution

The fourth proportional to 15,420.02, 23,130.89 and 4,889.30 is: 7,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.02 : 23,130.89 = 4,889.30 : x
  2. Step 2: Convert to fraction form
    15,420.02/23,130.89 = 4,889.30/x
  3. Step 3: Cross multiply
    15,420.02x = 23,130.89 × 4,889.30
  4. Step 4: Simplify right side
    15,420.02x = 113,093,720.38
  5. Step 5: Solve for x
    x = 113,093,720.38/15,420.02
  6. Step 6: Final answer
    x = 7,334.21

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1.5x scale

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.