Home / 30,210.60-45,324.06-21,500.80

Finding the Fourth Proportional to 30,210.60, 45,324.06 and 21,500.80

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Solution

The fourth proportional to 30,210.60, 45,324.06 and 21,500.80 is: 32,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.60 : 45,324.06 = 21,500.80 : x
  2. Step 2: Convert to fraction form
    30,210.60/45,324.06 = 21,500.80/x
  3. Step 3: Cross multiply
    30,210.60x = 45,324.06 × 21,500.80
  4. Step 4: Simplify right side
    30,210.60x = 974,503,549.25
  5. Step 5: Solve for x
    x = 974,503,549.25/30,210.60
  6. Step 6: Final answer
    x = 32,257.01

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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.