Home / 28,458.72-39,276-17,848.80

Finding the Fourth Proportional to 28,458.72, 39,276 and 17,848.80

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Solution

The fourth proportional to 28,458.72, 39,276 and 17,848.80 is: 24,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.72 : 39,276 = 17,848.80 : x
  2. Step 2: Convert to fraction form
    28,458.72/39,276 = 17,848.80/x
  3. Step 3: Cross multiply
    28,458.72x = 39,276 × 17,848.80
  4. Step 4: Simplify right side
    28,458.72x = 701,029,468.80
  5. Step 5: Solve for x
    x = 701,029,468.80/28,458.72
  6. Step 6: Final answer
    x = 24,633.20

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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.