Home / 37,130.04-51,230.64-20,997.68

Finding the Fourth Proportional to 37,130.04, 51,230.64 and 20,997.68

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Solution

The fourth proportional to 37,130.04, 51,230.64 and 20,997.68 is: 28,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,130.04 : 51,230.64 = 20,997.68 : x
  2. Step 2: Convert to fraction form
    37,130.04/51,230.64 = 20,997.68/x
  3. Step 3: Cross multiply
    37,130.04x = 51,230.64 × 20,997.68
  4. Step 4: Simplify right side
    37,130.04x = 1,075,724,584.92
  5. Step 5: Solve for x
    x = 1,075,724,584.92/37,130.04
  6. Step 6: Final answer
    x = 28,971.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.