Home / 28,872.03-39,852.27-18,782.67

Finding the Fourth Proportional to 28,872.03, 39,852.27 and 18,782.67

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Solution

The fourth proportional to 28,872.03, 39,852.27 and 18,782.67 is: 25,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.03 : 39,852.27 = 18,782.67 : x
  2. Step 2: Convert to fraction form
    28,872.03/39,852.27 = 18,782.67/x
  3. Step 3: Cross multiply
    28,872.03x = 39,852.27 × 18,782.67
  4. Step 4: Simplify right side
    28,872.03x = 748,532,036.16
  5. Step 5: Solve for x
    x = 748,532,036.16/28,872.03
  6. Step 6: Final answer
    x = 25,925.85

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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.