Home / 28,435.68-39,208.32-23,381.28

Finding the Fourth Proportional to 28,435.68, 39,208.32 and 23,381.28

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Solution

The fourth proportional to 28,435.68, 39,208.32 and 23,381.28 is: 32,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.68 : 39,208.32 = 23,381.28 : x
  2. Step 2: Convert to fraction form
    28,435.68/39,208.32 = 23,381.28/x
  3. Step 3: Cross multiply
    28,435.68x = 39,208.32 × 23,381.28
  4. Step 4: Simplify right side
    28,435.68x = 916,740,708.25
  5. Step 5: Solve for x
    x = 916,740,708.25/28,435.68
  6. Step 6: Final answer
    x = 32,239.10

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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.