Home / 18,875.76-28,258.32-13,233.84

Finding the Fourth Proportional to 18,875.76, 28,258.32 and 13,233.84

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Solution

The fourth proportional to 18,875.76, 28,258.32 and 13,233.84 is: 19,811.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.76 : 28,258.32 = 13,233.84 : x
  2. Step 2: Convert to fraction form
    18,875.76/28,258.32 = 13,233.84/x
  3. Step 3: Cross multiply
    18,875.76x = 28,258.32 × 13,233.84
  4. Step 4: Simplify right side
    18,875.76x = 373,966,085.55
  5. Step 5: Solve for x
    x = 373,966,085.55/18,875.76
  6. Step 6: Final answer
    x = 19,811.98

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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.