Home / 19,239.12-26,490.76-16,400.12

Finding the Fourth Proportional to 19,239.12, 26,490.76 and 16,400.12

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Solution

The fourth proportional to 19,239.12, 26,490.76 and 16,400.12 is: 22,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.12 : 26,490.76 = 16,400.12 : x
  2. Step 2: Convert to fraction form
    19,239.12/26,490.76 = 16,400.12/x
  3. Step 3: Cross multiply
    19,239.12x = 26,490.76 × 16,400.12
  4. Step 4: Simplify right side
    19,239.12x = 434,451,642.89
  5. Step 5: Solve for x
    x = 434,451,642.89/19,239.12
  6. Step 6: Final answer
    x = 22,581.68

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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.