Home / 20,956,531.24-28,904,424.02-18,504,816.76

Finding the Fourth Proportional to 20,956,531.24, 28,904,424.02 and 18,504,816.76

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Solution

The fourth proportional to 20,956,531.24, 28,904,424.02 and 18,504,816.76 is: 25,522,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,531.24 : 28,904,424.02 = 18,504,816.76 : x
  2. Step 2: Convert to fraction form
    20,956,531.24/28,904,424.02 = 18,504,816.76/x
  3. Step 3: Cross multiply
    20,956,531.24x = 28,904,424.02 × 18,504,816.76
  4. Step 4: Simplify right side
    20,956,531.24x = 534,871,070,043,442.62
  5. Step 5: Solve for x
    x = 534,871,070,043,442.62/20,956,531.24
  6. Step 6: Final answer
    x = 25,522,881.81

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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.