Home / 21,572.83-29,776.08-19,330.85

Finding the Fourth Proportional to 21,572.83, 29,776.08 and 19,330.85

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Solution

The fourth proportional to 21,572.83, 29,776.08 and 19,330.85 is: 26,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.83 : 29,776.08 = 19,330.85 : x
  2. Step 2: Convert to fraction form
    21,572.83/29,776.08 = 19,330.85/x
  3. Step 3: Cross multiply
    21,572.83x = 29,776.08 × 19,330.85
  4. Step 4: Simplify right side
    21,572.83x = 575,597,028.63
  5. Step 5: Solve for x
    x = 575,597,028.63/21,572.83
  6. Step 6: Final answer
    x = 26,681.57

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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.