Home / 31,485.76-47,228.58-21,595.05

Finding the Fourth Proportional to 31,485.76, 47,228.58 and 21,595.05

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Solution

The fourth proportional to 31,485.76, 47,228.58 and 21,595.05 is: 32,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.76 : 47,228.58 = 21,595.05 : x
  2. Step 2: Convert to fraction form
    31,485.76/47,228.58 = 21,595.05/x
  3. Step 3: Cross multiply
    31,485.76x = 47,228.58 × 21,595.05
  4. Step 4: Simplify right side
    31,485.76x = 1,019,903,546.53
  5. Step 5: Solve for x
    x = 1,019,903,546.53/31,485.76
  6. Step 6: Final answer
    x = 32,392.54

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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.