Home / 21,456,015.40-32,184,023.10-21,306,716.20

Finding the Fourth Proportional to 21,456,015.40, 32,184,023.10 and 21,306,716.20

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Solution

The fourth proportional to 21,456,015.40, 32,184,023.10 and 21,306,716.20 is: 31,960,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,015.40 : 32,184,023.10 = 21,306,716.20 : x
  2. Step 2: Convert to fraction form
    21,456,015.40/32,184,023.10 = 21,306,716.20/x
  3. Step 3: Cross multiply
    21,456,015.40x = 32,184,023.10 × 21,306,716.20
  4. Step 4: Simplify right side
    21,456,015.40x = 685,735,846,365,944.25
  5. Step 5: Solve for x
    x = 685,735,846,365,944.25/21,456,015.40
  6. Step 6: Final answer
    x = 31,960,074.30

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1.5x scale

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.