Home / 15,421.40-23,141.33-14,166.60

Finding the Fourth Proportional to 15,421.40, 23,141.33 and 14,166.60

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Solution

The fourth proportional to 15,421.40, 23,141.33 and 14,166.60 is: 21,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.40 : 23,141.33 = 14,166.60 : x
  2. Step 2: Convert to fraction form
    15,421.40/23,141.33 = 14,166.60/x
  3. Step 3: Cross multiply
    15,421.40x = 23,141.33 × 14,166.60
  4. Step 4: Simplify right side
    15,421.40x = 327,833,894.75
  5. Step 5: Solve for x
    x = 327,833,894.75/15,421.40
  6. Step 6: Final answer
    x = 21,258.38

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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.