Home / 28,108.46-38,792.13-15,535.64

Finding the Fourth Proportional to 28,108.46, 38,792.13 and 15,535.64

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Solution

The fourth proportional to 28,108.46, 38,792.13 and 15,535.64 is: 21,440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.46 : 38,792.13 = 15,535.64 : x
  2. Step 2: Convert to fraction form
    28,108.46/38,792.13 = 15,535.64/x
  3. Step 3: Cross multiply
    28,108.46x = 38,792.13 × 15,535.64
  4. Step 4: Simplify right side
    28,108.46x = 602,660,566.51
  5. Step 5: Solve for x
    x = 602,660,566.51/28,108.46
  6. Step 6: Final answer
    x = 21,440.54

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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.