Home / 36,457.61-54,686.43-20,864.30

Finding the Fourth Proportional to 36,457.61, 54,686.43 and 20,864.30

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Solution

The fourth proportional to 36,457.61, 54,686.43 and 20,864.30 is: 31,296.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,457.61 : 54,686.43 = 20,864.30 : x
  2. Step 2: Convert to fraction form
    36,457.61/54,686.43 = 20,864.30/x
  3. Step 3: Cross multiply
    36,457.61x = 54,686.43 × 20,864.30
  4. Step 4: Simplify right side
    36,457.61x = 1,140,993,808.02
  5. Step 5: Solve for x
    x = 1,140,993,808.02/36,457.61
  6. Step 6: Final answer
    x = 31,296.46

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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.