Home / 21,456,019.40-32,184,029.10-21,306,720.20

Finding the Fourth Proportional to 21,456,019.40, 32,184,029.10 and 21,306,720.20

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Solution

The fourth proportional to 21,456,019.40, 32,184,029.10 and 21,306,720.20 is: 31,960,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,019.40 : 32,184,029.10 = 21,306,720.20 : x
  2. Step 2: Convert to fraction form
    21,456,019.40/32,184,029.10 = 21,306,720.20/x
  3. Step 3: Cross multiply
    21,456,019.40x = 32,184,029.10 × 21,306,720.20
  4. Step 4: Simplify right side
    21,456,019.40x = 685,736,102,942,357.88
  5. Step 5: Solve for x
    x = 685,736,102,942,357.88/21,456,019.40
  6. Step 6: Final answer
    x = 31,960,080.30

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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.