Home / 34,330.80-51,496.20-21,140.40

Finding the Fourth Proportional to 34,330.80, 51,496.20 and 21,140.40

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Solution

The fourth proportional to 34,330.80, 51,496.20 and 21,140.40 is: 31,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,330.80 : 51,496.20 = 21,140.40 : x
  2. Step 2: Convert to fraction form
    34,330.80/51,496.20 = 21,140.40/x
  3. Step 3: Cross multiply
    34,330.80x = 51,496.20 × 21,140.40
  4. Step 4: Simplify right side
    34,330.80x = 1,088,650,266.48
  5. Step 5: Solve for x
    x = 1,088,650,266.48/34,330.80
  6. Step 6: Final answer
    x = 31,710.60

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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.