Home / 34,442.40-47,510.46-21,690.57

Finding the Fourth Proportional to 34,442.40, 47,510.46 and 21,690.57

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Solution

The fourth proportional to 34,442.40, 47,510.46 and 21,690.57 is: 29,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,442.40 : 47,510.46 = 21,690.57 : x
  2. Step 2: Convert to fraction form
    34,442.40/47,510.46 = 21,690.57/x
  3. Step 3: Cross multiply
    34,442.40x = 47,510.46 × 21,690.57
  4. Step 4: Simplify right side
    34,442.40x = 1,030,528,958.36
  5. Step 5: Solve for x
    x = 1,030,528,958.36/34,442.40
  6. Step 6: Final answer
    x = 29,920.36

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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.