Home / 20,421,500.34-28,182,261.06-11,254,733.58

Finding the Fourth Proportional to 20,421,500.34, 28,182,261.06 and 11,254,733.58

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Solution

The fourth proportional to 20,421,500.34, 28,182,261.06 and 11,254,733.58 is: 15,531,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,500.34 : 28,182,261.06 = 11,254,733.58 : x
  2. Step 2: Convert to fraction form
    20,421,500.34/28,182,261.06 = 11,254,733.58/x
  3. Step 3: Cross multiply
    20,421,500.34x = 28,182,261.06 × 11,254,733.58
  4. Step 4: Simplify right side
    20,421,500.34x = 317,183,839,912,308.38
  5. Step 5: Solve for x
    x = 317,183,839,912,308.38/20,421,500.34
  6. Step 6: Final answer
    x = 15,531,857.83

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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.