Home / 51,529.64-77,336.84-21,980.84

Finding the Fourth Proportional to 51,529.64, 77,336.84 and 21,980.84

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Solution

The fourth proportional to 51,529.64, 77,336.84 and 21,980.84 is: 32,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,529.64 : 77,336.84 = 21,980.84 : x
  2. Step 2: Convert to fraction form
    51,529.64/77,336.84 = 21,980.84/x
  3. Step 3: Cross multiply
    51,529.64x = 77,336.84 × 21,980.84
  4. Step 4: Simplify right side
    51,529.64x = 1,699,928,374.41
  5. Step 5: Solve for x
    x = 1,699,928,374.41/51,529.64
  6. Step 6: Final answer
    x = 32,989.33

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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.