Home / 21,295,400.40-31,943,100.60-20,035,688.40

Finding the Fourth Proportional to 21,295,400.40, 31,943,100.60 and 20,035,688.40

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Solution

The fourth proportional to 21,295,400.40, 31,943,100.60 and 20,035,688.40 is: 30,053,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295,400.40 : 31,943,100.60 = 20,035,688.40 : x
  2. Step 2: Convert to fraction form
    21,295,400.40/31,943,100.60 = 20,035,688.40/x
  3. Step 3: Cross multiply
    21,295,400.40x = 31,943,100.60 × 20,035,688.40
  4. Step 4: Simplify right side
    21,295,400.40x = 640,002,010,151,453
  5. Step 5: Solve for x
    x = 640,002,010,151,453/21,295,400.40
  6. Step 6: Final answer
    x = 30,053,532.60

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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.