Home / 20,421,499.06-28,182,259.29-11,254,732.30

Finding the Fourth Proportional to 20,421,499.06, 28,182,259.29 and 11,254,732.30

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Solution

The fourth proportional to 20,421,499.06, 28,182,259.29 and 11,254,732.30 is: 15,531,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,499.06 : 28,182,259.29 = 11,254,732.30 : x
  2. Step 2: Convert to fraction form
    20,421,499.06/28,182,259.29 = 11,254,732.30/x
  3. Step 3: Cross multiply
    20,421,499.06x = 28,182,259.29 × 11,254,732.30
  4. Step 4: Simplify right side
    20,421,499.06x = 317,183,783,918,138.06
  5. Step 5: Solve for x
    x = 317,183,783,918,138.06/20,421,499.06
  6. Step 6: Final answer
    x = 15,531,856.06

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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.