Home / 39,812.20-59,622.30-21,303.40

Finding the Fourth Proportional to 39,812.20, 59,622.30 and 21,303.40

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Solution

The fourth proportional to 39,812.20, 59,622.30 and 21,303.40 is: 31,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.20 : 59,622.30 = 21,303.40 : x
  2. Step 2: Convert to fraction form
    39,812.20/59,622.30 = 21,303.40/x
  3. Step 3: Cross multiply
    39,812.20x = 59,622.30 × 21,303.40
  4. Step 4: Simplify right side
    39,812.20x = 1,270,157,705.82
  5. Step 5: Solve for x
    x = 1,270,157,705.82/39,812.20
  6. Step 6: Final answer
    x = 31,903.73

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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.