Home / 20,929.04-31,353.46-20,225.56

Finding the Fourth Proportional to 20,929.04, 31,353.46 and 20,225.56

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Solution

The fourth proportional to 20,929.04, 31,353.46 and 20,225.56 is: 30,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.04 : 31,353.46 = 20,225.56 : x
  2. Step 2: Convert to fraction form
    20,929.04/31,353.46 = 20,225.56/x
  3. Step 3: Cross multiply
    20,929.04x = 31,353.46 × 20,225.56
  4. Step 4: Simplify right side
    20,929.04x = 634,141,129.67
  5. Step 5: Solve for x
    x = 634,141,129.67/20,929.04
  6. Step 6: Final answer
    x = 30,299.58

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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.