Home / 28,628.91-42,875.49-22,686.69

Finding the Fourth Proportional to 28,628.91, 42,875.49 and 22,686.69

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Solution

The fourth proportional to 28,628.91, 42,875.49 and 22,686.69 is: 33,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.91 : 42,875.49 = 22,686.69 : x
  2. Step 2: Convert to fraction form
    28,628.91/42,875.49 = 22,686.69/x
  3. Step 3: Cross multiply
    28,628.91x = 42,875.49 × 22,686.69
  4. Step 4: Simplify right side
    28,628.91x = 972,702,950.23
  5. Step 5: Solve for x
    x = 972,702,950.23/28,628.91
  6. Step 6: Final answer
    x = 33,976.25

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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.