Home / 19,320.30-28,980.45-16,404.30

Finding the Fourth Proportional to 19,320.30, 28,980.45 and 16,404.30

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Solution

The fourth proportional to 19,320.30, 28,980.45 and 16,404.30 is: 24,606.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.30 : 28,980.45 = 16,404.30 : x
  2. Step 2: Convert to fraction form
    19,320.30/28,980.45 = 16,404.30/x
  3. Step 3: Cross multiply
    19,320.30x = 28,980.45 × 16,404.30
  4. Step 4: Simplify right side
    19,320.30x = 475,403,995.94
  5. Step 5: Solve for x
    x = 475,403,995.94/19,320.30
  6. Step 6: Final answer
    x = 24,606.45

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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.