Home / 19,931.96-29,902.64-11,172.92

Finding the Fourth Proportional to 19,931.96, 29,902.64 and 11,172.92

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Solution

The fourth proportional to 19,931.96, 29,902.64 and 11,172.92 is: 16,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.96 : 29,902.64 = 11,172.92 : x
  2. Step 2: Convert to fraction form
    19,931.96/29,902.64 = 11,172.92/x
  3. Step 3: Cross multiply
    19,931.96x = 29,902.64 × 11,172.92
  4. Step 4: Simplify right side
    19,931.96x = 334,099,804.51
  5. Step 5: Solve for x
    x = 334,099,804.51/19,931.96
  6. Step 6: Final answer
    x = 16,762.01

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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.