Home / 28,447.93-39,271.80-16,509.34

Finding the Fourth Proportional to 28,447.93, 39,271.80 and 16,509.34

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Solution

The fourth proportional to 28,447.93, 39,271.80 and 16,509.34 is: 22,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.93 : 39,271.80 = 16,509.34 : x
  2. Step 2: Convert to fraction form
    28,447.93/39,271.80 = 16,509.34/x
  3. Step 3: Cross multiply
    28,447.93x = 39,271.80 × 16,509.34
  4. Step 4: Simplify right side
    28,447.93x = 648,351,498.61
  5. Step 5: Solve for x
    x = 648,351,498.61/28,447.93
  6. Step 6: Final answer
    x = 22,790.81

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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.