Home / 39,520.76-54,558.46-30,547.96

Finding the Fourth Proportional to 39,520.76, 54,558.46 and 30,547.96

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Solution

The fourth proportional to 39,520.76, 54,558.46 and 30,547.96 is: 42,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,520.76 : 54,558.46 = 30,547.96 : x
  2. Step 2: Convert to fraction form
    39,520.76/54,558.46 = 30,547.96/x
  3. Step 3: Cross multiply
    39,520.76x = 54,558.46 × 30,547.96
  4. Step 4: Simplify right side
    39,520.76x = 1,666,649,653.74
  5. Step 5: Solve for x
    x = 1,666,649,653.74/39,520.76
  6. Step 6: Final answer
    x = 42,171.50

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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.