Home / 21,022,101.60-31,533,152.40-20,596,948.80

Finding the Fourth Proportional to 21,022,101.60, 31,533,152.40 and 20,596,948.80

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Solution

The fourth proportional to 21,022,101.60, 31,533,152.40 and 20,596,948.80 is: 30,895,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,101.60 : 31,533,152.40 = 20,596,948.80 : x
  2. Step 2: Convert to fraction form
    21,022,101.60/31,533,152.40 = 20,596,948.80/x
  3. Step 3: Cross multiply
    21,022,101.60x = 31,533,152.40 × 20,596,948.80
  4. Step 4: Simplify right side
    21,022,101.60x = 649,486,725,485,397.12
  5. Step 5: Solve for x
    x = 649,486,725,485,397.12/21,022,101.60
  6. Step 6: Final answer
    x = 30,895,423.20

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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.