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Finding the Fourth Proportional to 56,013.68, 84,022.14 and 20,946.64

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Solution

The fourth proportional to 56,013.68, 84,022.14 and 20,946.64 is: 31,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,013.68 : 84,022.14 = 20,946.64 : x
  2. Step 2: Convert to fraction form
    56,013.68/84,022.14 = 20,946.64/x
  3. Step 3: Cross multiply
    56,013.68x = 84,022.14 × 20,946.64
  4. Step 4: Simplify right side
    56,013.68x = 1,759,981,518.61
  5. Step 5: Solve for x
    x = 1,759,981,518.61/56,013.68
  6. Step 6: Final answer
    x = 31,420.57

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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.