Home / 21,031,323.40-31,559,426.70-15,337,217.80

Finding the Fourth Proportional to 21,031,323.40, 31,559,426.70 and 15,337,217.80

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Solution

The fourth proportional to 21,031,323.40, 31,559,426.70 and 15,337,217.80 is: 23,014,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,323.40 : 31,559,426.70 = 15,337,217.80 : x
  2. Step 2: Convert to fraction form
    21,031,323.40/31,559,426.70 = 15,337,217.80/x
  3. Step 3: Cross multiply
    21,031,323.40x = 31,559,426.70 × 15,337,217.80
  4. Step 4: Simplify right side
    21,031,323.40x = 484,033,800,941,035.25
  5. Step 5: Solve for x
    x = 484,033,800,941,035.25/21,031,323.40
  6. Step 6: Final answer
    x = 23,014,899.81

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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.