Home / 32,720.16-49,041.36-18,840

Finding the Fourth Proportional to 32,720.16, 49,041.36 and 18,840

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Solution

The fourth proportional to 32,720.16, 49,041.36 and 18,840 is: 28,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.16 : 49,041.36 = 18,840 : x
  2. Step 2: Convert to fraction form
    32,720.16/49,041.36 = 18,840/x
  3. Step 3: Cross multiply
    32,720.16x = 49,041.36 × 18,840
  4. Step 4: Simplify right side
    32,720.16x = 923,939,222.40
  5. Step 5: Solve for x
    x = 923,939,222.40/32,720.16
  6. Step 6: Final answer
    x = 28,237.61

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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.