Home / 21,012,030-28,997,044.27-11,844,672.75

Finding the Fourth Proportional to 21,012,030, 28,997,044.27 and 11,844,672.75

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Solution

The fourth proportional to 21,012,030, 28,997,044.27 and 11,844,672.75 is: 16,345,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,030 : 28,997,044.27 = 11,844,672.75 : x
  2. Step 2: Convert to fraction form
    21,012,030/28,997,044.27 = 11,844,672.75/x
  3. Step 3: Cross multiply
    21,012,030x = 28,997,044.27 × 11,844,672.75
  4. Step 4: Simplify right side
    21,012,030x = 343,460,500,065,800.94
  5. Step 5: Solve for x
    x = 343,460,500,065,800.94/21,012,030
  6. Step 6: Final answer
    x = 16,345,898.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.