Home / 28,056.50-38,718.81-15,482.06

Finding the Fourth Proportional to 28,056.50, 38,718.81 and 15,482.06

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Solution

The fourth proportional to 28,056.50, 38,718.81 and 15,482.06 is: 21,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.50 : 38,718.81 = 15,482.06 : x
  2. Step 2: Convert to fraction form
    28,056.50/38,718.81 = 15,482.06/x
  3. Step 3: Cross multiply
    28,056.50x = 38,718.81 × 15,482.06
  4. Step 4: Simplify right side
    28,056.50x = 599,446,939.55
  5. Step 5: Solve for x
    x = 599,446,939.55/28,056.50
  6. Step 6: Final answer
    x = 21,365.71

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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.