Home / 19,403.10-26,756.34-16,215.21

Finding the Fourth Proportional to 19,403.10, 26,756.34 and 16,215.21

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Solution

The fourth proportional to 19,403.10, 26,756.34 and 16,215.21 is: 22,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.10 : 26,756.34 = 16,215.21 : x
  2. Step 2: Convert to fraction form
    19,403.10/26,756.34 = 16,215.21/x
  3. Step 3: Cross multiply
    19,403.10x = 26,756.34 × 16,215.21
  4. Step 4: Simplify right side
    19,403.10x = 433,859,699.29
  5. Step 5: Solve for x
    x = 433,859,699.29/19,403.10
  6. Step 6: Final answer
    x = 22,360.33

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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.