Home / 25,420.47-38,128.28-15,554.67

Finding the Fourth Proportional to 25,420.47, 38,128.28 and 15,554.67

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Solution

The fourth proportional to 25,420.47, 38,128.28 and 15,554.67 is: 23,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.47 : 38,128.28 = 15,554.67 : x
  2. Step 2: Convert to fraction form
    25,420.47/38,128.28 = 15,554.67/x
  3. Step 3: Cross multiply
    25,420.47x = 38,128.28 × 15,554.67
  4. Step 4: Simplify right side
    25,420.47x = 593,072,735.29
  5. Step 5: Solve for x
    x = 593,072,735.29/25,420.47
  6. Step 6: Final answer
    x = 23,330.52

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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.