Home / 28,266.66-39,009.06-15,693.84

Finding the Fourth Proportional to 28,266.66, 39,009.06 and 15,693.84

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Solution

The fourth proportional to 28,266.66, 39,009.06 and 15,693.84 is: 21,658.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.66 : 39,009.06 = 15,693.84 : x
  2. Step 2: Convert to fraction form
    28,266.66/39,009.06 = 15,693.84/x
  3. Step 3: Cross multiply
    28,266.66x = 39,009.06 × 15,693.84
  4. Step 4: Simplify right side
    28,266.66x = 612,201,946.19
  5. Step 5: Solve for x
    x = 612,201,946.19/28,266.66
  6. Step 6: Final answer
    x = 21,658.09

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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.