Home / 39,960.15-55,148.36-22,056.99

Finding the Fourth Proportional to 39,960.15, 55,148.36 and 22,056.99

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Solution

The fourth proportional to 39,960.15, 55,148.36 and 22,056.99 is: 30,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.15 : 55,148.36 = 22,056.99 : x
  2. Step 2: Convert to fraction form
    39,960.15/55,148.36 = 22,056.99/x
  3. Step 3: Cross multiply
    39,960.15x = 55,148.36 × 22,056.99
  4. Step 4: Simplify right side
    39,960.15x = 1,216,406,714.75
  5. Step 5: Solve for x
    x = 1,216,406,714.75/39,960.15
  6. Step 6: Final answer
    x = 30,440.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.