Home / 43,313.80-64,970.70-21,141.40

Finding the Fourth Proportional to 43,313.80, 64,970.70 and 21,141.40

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Solution

The fourth proportional to 43,313.80, 64,970.70 and 21,141.40 is: 31,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,313.80 : 64,970.70 = 21,141.40 : x
  2. Step 2: Convert to fraction form
    43,313.80/64,970.70 = 21,141.40/x
  3. Step 3: Cross multiply
    43,313.80x = 64,970.70 × 21,141.40
  4. Step 4: Simplify right side
    43,313.80x = 1,373,571,556.98
  5. Step 5: Solve for x
    x = 1,373,571,556.98/43,313.80
  6. Step 6: Final answer
    x = 31,712.10

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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.