Home / 28,918.44-39,913.38-16,988.04

Finding the Fourth Proportional to 28,918.44, 39,913.38 and 16,988.04

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Solution

The fourth proportional to 28,918.44, 39,913.38 and 16,988.04 is: 23,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.44 : 39,913.38 = 16,988.04 : x
  2. Step 2: Convert to fraction form
    28,918.44/39,913.38 = 16,988.04/x
  3. Step 3: Cross multiply
    28,918.44x = 39,913.38 × 16,988.04
  4. Step 4: Simplify right side
    28,918.44x = 678,050,095.98
  5. Step 5: Solve for x
    x = 678,050,095.98/28,918.44
  6. Step 6: Final answer
    x = 23,446.98

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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.