Home / 42,717.22-64,089.54-20,532.21

Finding the Fourth Proportional to 42,717.22, 64,089.54 and 20,532.21

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Solution

The fourth proportional to 42,717.22, 64,089.54 and 20,532.21 is: 30,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,717.22 : 64,089.54 = 20,532.21 : x
  2. Step 2: Convert to fraction form
    42,717.22/64,089.54 = 20,532.21/x
  3. Step 3: Cross multiply
    42,717.22x = 64,089.54 × 20,532.21
  4. Step 4: Simplify right side
    42,717.22x = 1,315,899,894.08
  5. Step 5: Solve for x
    x = 1,315,899,894.08/42,717.22
  6. Step 6: Final answer
    x = 30,804.90

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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.