Home / 30,931.75-46,294.92-28,164.79

Finding the Fourth Proportional to 30,931.75, 46,294.92 and 28,164.79

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Solution

The fourth proportional to 30,931.75, 46,294.92 and 28,164.79 is: 42,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.75 : 46,294.92 = 28,164.79 : x
  2. Step 2: Convert to fraction form
    30,931.75/46,294.92 = 28,164.79/x
  3. Step 3: Cross multiply
    30,931.75x = 46,294.92 × 28,164.79
  4. Step 4: Simplify right side
    30,931.75x = 1,303,886,699.87
  5. Step 5: Solve for x
    x = 1,303,886,699.87/30,931.75
  6. Step 6: Final answer
    x = 42,153.67

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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.