Home / 28,923.40-43,356.30-13,313.80

Finding the Fourth Proportional to 28,923.40, 43,356.30 and 13,313.80

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Solution

The fourth proportional to 28,923.40, 43,356.30 and 13,313.80 is: 19,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923.40 : 43,356.30 = 13,313.80 : x
  2. Step 2: Convert to fraction form
    28,923.40/43,356.30 = 13,313.80/x
  3. Step 3: Cross multiply
    28,923.40x = 43,356.30 × 13,313.80
  4. Step 4: Simplify right side
    28,923.40x = 577,237,106.94
  5. Step 5: Solve for x
    x = 577,237,106.94/28,923.40
  6. Step 6: Final answer
    x = 19,957.44

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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.