Home / 21,022,353.60-31,533,530.40-20,597,200.80

Finding the Fourth Proportional to 21,022,353.60, 31,533,530.40 and 20,597,200.80

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Solution

The fourth proportional to 21,022,353.60, 31,533,530.40 and 20,597,200.80 is: 30,895,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,353.60 : 31,533,530.40 = 20,597,200.80 : x
  2. Step 2: Convert to fraction form
    21,022,353.60/31,533,530.40 = 20,597,200.80/x
  3. Step 3: Cross multiply
    21,022,353.60x = 31,533,530.40 × 20,597,200.80
  4. Step 4: Simplify right side
    21,022,353.60x = 649,502,457,581,704.38
  5. Step 5: Solve for x
    x = 649,502,457,581,704.38/21,022,353.60
  6. Step 6: Final answer
    x = 30,895,801.20

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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.