Home / 15,438.55-23,102.47-13,365.68

Finding the Fourth Proportional to 15,438.55, 23,102.47 and 13,365.68

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Solution

The fourth proportional to 15,438.55, 23,102.47 and 13,365.68 is: 20,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.55 : 23,102.47 = 13,365.68 : x
  2. Step 2: Convert to fraction form
    15,438.55/23,102.47 = 13,365.68/x
  3. Step 3: Cross multiply
    15,438.55x = 23,102.47 × 13,365.68
  4. Step 4: Simplify right side
    15,438.55x = 308,780,242.17
  5. Step 5: Solve for x
    x = 308,780,242.17/15,438.55
  6. Step 6: Final answer
    x = 20,000.60

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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.