Home / 28,013.67-38,658.88-15,266.86

Finding the Fourth Proportional to 28,013.67, 38,658.88 and 15,266.86

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Solution

The fourth proportional to 28,013.67, 38,658.88 and 15,266.86 is: 21,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.67 : 38,658.88 = 15,266.86 : x
  2. Step 2: Convert to fraction form
    28,013.67/38,658.88 = 15,266.86/x
  3. Step 3: Cross multiply
    28,013.67x = 38,658.88 × 15,266.86
  4. Step 4: Simplify right side
    28,013.67x = 590,199,632.38
  5. Step 5: Solve for x
    x = 590,199,632.38/28,013.67
  6. Step 6: Final answer
    x = 21,068.27

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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.