Home / 28,926.72-39,898.08-18,836.46

Finding the Fourth Proportional to 28,926.72, 39,898.08 and 18,836.46

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Solution

The fourth proportional to 28,926.72, 39,898.08 and 18,836.46 is: 25,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.72 : 39,898.08 = 18,836.46 : x
  2. Step 2: Convert to fraction form
    28,926.72/39,898.08 = 18,836.46/x
  3. Step 3: Cross multiply
    28,926.72x = 39,898.08 × 18,836.46
  4. Step 4: Simplify right side
    28,926.72x = 751,538,588.00
  5. Step 5: Solve for x
    x = 751,538,588.00/28,926.72
  6. Step 6: Final answer
    x = 25,980.77

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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.