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Finding the Fourth Proportional to 56,015.68, 84,025.14 and 20,948.64

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Solution

The fourth proportional to 56,015.68, 84,025.14 and 20,948.64 is: 31,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.68 : 84,025.14 = 20,948.64 : x
  2. Step 2: Convert to fraction form
    56,015.68/84,025.14 = 20,948.64/x
  3. Step 3: Cross multiply
    56,015.68x = 84,025.14 × 20,948.64
  4. Step 4: Simplify right side
    56,015.68x = 1,760,212,408.81
  5. Step 5: Solve for x
    x = 1,760,212,408.81/56,015.68
  6. Step 6: Final answer
    x = 31,423.57

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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.