Home / 28,056.96-38,721.60-15,482.88

Finding the Fourth Proportional to 28,056.96, 38,721.60 and 15,482.88

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Solution

The fourth proportional to 28,056.96, 38,721.60 and 15,482.88 is: 21,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.96 : 38,721.60 = 15,482.88 : x
  2. Step 2: Convert to fraction form
    28,056.96/38,721.60 = 15,482.88/x
  3. Step 3: Cross multiply
    28,056.96x = 38,721.60 × 15,482.88
  4. Step 4: Simplify right side
    28,056.96x = 599,521,886.21
  5. Step 5: Solve for x
    x = 599,521,886.21/28,056.96
  6. Step 6: Final answer
    x = 21,368.03

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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.