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Finding the Fourth Proportional to 35,420.10, 53,130.06 and 9,122.64

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Solution

The fourth proportional to 35,420.10, 53,130.06 and 9,122.64 is: 13,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.10 : 53,130.06 = 9,122.64 : x
  2. Step 2: Convert to fraction form
    35,420.10/53,130.06 = 9,122.64/x
  3. Step 3: Cross multiply
    35,420.10x = 53,130.06 × 9,122.64
  4. Step 4: Simplify right side
    35,420.10x = 484,686,410.56
  5. Step 5: Solve for x
    x = 484,686,410.56/35,420.10
  6. Step 6: Final answer
    x = 13,683.94

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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.