Home / 20,110.65-30,030.54-16,420.08

Finding the Fourth Proportional to 20,110.65, 30,030.54 and 16,420.08

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Solution

The fourth proportional to 20,110.65, 30,030.54 and 16,420.08 is: 24,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.65 : 30,030.54 = 16,420.08 : x
  2. Step 2: Convert to fraction form
    20,110.65/30,030.54 = 16,420.08/x
  3. Step 3: Cross multiply
    20,110.65x = 30,030.54 × 16,420.08
  4. Step 4: Simplify right side
    20,110.65x = 493,103,869.24
  5. Step 5: Solve for x
    x = 493,103,869.24/20,110.65
  6. Step 6: Final answer
    x = 24,519.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.