Home / 28,915.90-43,287.45-17,223.10

Finding the Fourth Proportional to 28,915.90, 43,287.45 and 17,223.10

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Solution

The fourth proportional to 28,915.90, 43,287.45 and 17,223.10 is: 25,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.90 : 43,287.45 = 17,223.10 : x
  2. Step 2: Convert to fraction form
    28,915.90/43,287.45 = 17,223.10/x
  3. Step 3: Cross multiply
    28,915.90x = 43,287.45 × 17,223.10
  4. Step 4: Simplify right side
    28,915.90x = 745,544,080.10
  5. Step 5: Solve for x
    x = 745,544,080.10/28,915.90
  6. Step 6: Final answer
    x = 25,783.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.