Home / 34,586.02-47,728.20-19,478.71

Finding the Fourth Proportional to 34,586.02, 47,728.20 and 19,478.71

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Solution

The fourth proportional to 34,586.02, 47,728.20 and 19,478.71 is: 26,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,586.02 : 47,728.20 = 19,478.71 : x
  2. Step 2: Convert to fraction form
    34,586.02/47,728.20 = 19,478.71/x
  3. Step 3: Cross multiply
    34,586.02x = 47,728.20 × 19,478.71
  4. Step 4: Simplify right side
    34,586.02x = 929,683,766.62
  5. Step 5: Solve for x
    x = 929,683,766.62/34,586.02
  6. Step 6: Final answer
    x = 26,880.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.