Home / 23,619.40-35,429.10-21,430.60

Finding the Fourth Proportional to 23,619.40, 35,429.10 and 21,430.60

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Solution

The fourth proportional to 23,619.40, 35,429.10 and 21,430.60 is: 32,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,619.40 : 35,429.10 = 21,430.60 : x
  2. Step 2: Convert to fraction form
    23,619.40/35,429.10 = 21,430.60/x
  3. Step 3: Cross multiply
    23,619.40x = 35,429.10 × 21,430.60
  4. Step 4: Simplify right side
    23,619.40x = 759,266,870.46
  5. Step 5: Solve for x
    x = 759,266,870.46/23,619.40
  6. Step 6: Final answer
    x = 32,145.90

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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.