Home / 28,410.77-39,208.07-15,835.52

Finding the Fourth Proportional to 28,410.77, 39,208.07 and 15,835.52

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Solution

The fourth proportional to 28,410.77, 39,208.07 and 15,835.52 is: 21,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.77 : 39,208.07 = 15,835.52 : x
  2. Step 2: Convert to fraction form
    28,410.77/39,208.07 = 15,835.52/x
  3. Step 3: Cross multiply
    28,410.77x = 39,208.07 × 15,835.52
  4. Step 4: Simplify right side
    28,410.77x = 620,880,176.65
  5. Step 5: Solve for x
    x = 620,880,176.65/28,410.77
  6. Step 6: Final answer
    x = 21,853.69

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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.