Home / 28,740.23-39,662.28-17,407.32

Finding the Fourth Proportional to 28,740.23, 39,662.28 and 17,407.32

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Solution

The fourth proportional to 28,740.23, 39,662.28 and 17,407.32 is: 24,022.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.23 : 39,662.28 = 17,407.32 : x
  2. Step 2: Convert to fraction form
    28,740.23/39,662.28 = 17,407.32/x
  3. Step 3: Cross multiply
    28,740.23x = 39,662.28 × 17,407.32
  4. Step 4: Simplify right side
    28,740.23x = 690,413,999.89
  5. Step 5: Solve for x
    x = 690,413,999.89/28,740.23
  6. Step 6: Final answer
    x = 24,022.57

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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.