Home / 28,891.04-39,866.80-16,313.36

Finding the Fourth Proportional to 28,891.04, 39,866.80 and 16,313.36

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Solution

The fourth proportional to 28,891.04, 39,866.80 and 16,313.36 is: 22,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.04 : 39,866.80 = 16,313.36 : x
  2. Step 2: Convert to fraction form
    28,891.04/39,866.80 = 16,313.36/x
  3. Step 3: Cross multiply
    28,891.04x = 39,866.80 × 16,313.36
  4. Step 4: Simplify right side
    28,891.04x = 650,361,460.45
  5. Step 5: Solve for x
    x = 650,361,460.45/28,891.04
  6. Step 6: Final answer
    x = 22,510.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.