Home / 38,455.76-57,686.36-13,492.88

Finding the Fourth Proportional to 38,455.76, 57,686.36 and 13,492.88

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Solution

The fourth proportional to 38,455.76, 57,686.36 and 13,492.88 is: 20,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.76 : 57,686.36 = 13,492.88 : x
  2. Step 2: Convert to fraction form
    38,455.76/57,686.36 = 13,492.88/x
  3. Step 3: Cross multiply
    38,455.76x = 57,686.36 × 13,492.88
  4. Step 4: Simplify right side
    38,455.76x = 778,355,133.12
  5. Step 5: Solve for x
    x = 778,355,133.12/38,455.76
  6. Step 6: Final answer
    x = 20,240.27

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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.