Home / 38,586.51-57,880.98-13,285.76

Finding the Fourth Proportional to 38,586.51, 57,880.98 and 13,285.76

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Solution

The fourth proportional to 38,586.51, 57,880.98 and 13,285.76 is: 19,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,586.51 : 57,880.98 = 13,285.76 : x
  2. Step 2: Convert to fraction form
    38,586.51/57,880.98 = 13,285.76/x
  3. Step 3: Cross multiply
    38,586.51x = 57,880.98 × 13,285.76
  4. Step 4: Simplify right side
    38,586.51x = 768,992,519.44
  5. Step 5: Solve for x
    x = 768,992,519.44/38,586.51
  6. Step 6: Final answer
    x = 19,929.05

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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.