Home / 30,871.90-46,258.64-19,769.45

Finding the Fourth Proportional to 30,871.90, 46,258.64 and 19,769.45

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Solution

The fourth proportional to 30,871.90, 46,258.64 and 19,769.45 is: 29,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.90 : 46,258.64 = 19,769.45 : x
  2. Step 2: Convert to fraction form
    30,871.90/46,258.64 = 19,769.45/x
  3. Step 3: Cross multiply
    30,871.90x = 46,258.64 × 19,769.45
  4. Step 4: Simplify right side
    30,871.90x = 914,507,771.70
  5. Step 5: Solve for x
    x = 914,507,771.70/30,871.90
  6. Step 6: Final answer
    x = 29,622.66

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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.