Home / 28,145-38,836.74-15,568.04

Finding the Fourth Proportional to 28,145, 38,836.74 and 15,568.04

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Solution

The fourth proportional to 28,145, 38,836.74 and 15,568.04 is: 21,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145 : 38,836.74 = 15,568.04 : x
  2. Step 2: Convert to fraction form
    28,145/38,836.74 = 15,568.04/x
  3. Step 3: Cross multiply
    28,145x = 38,836.74 × 15,568.04
  4. Step 4: Simplify right side
    28,145x = 604,611,921.79
  5. Step 5: Solve for x
    x = 604,611,921.79/28,145
  6. Step 6: Final answer
    x = 21,482.04

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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.