Home / 21,602.95-29,825.66-16,557.66

Finding the Fourth Proportional to 21,602.95, 29,825.66 and 16,557.66

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Solution

The fourth proportional to 21,602.95, 29,825.66 and 16,557.66 is: 22,859.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.95 : 29,825.66 = 16,557.66 : x
  2. Step 2: Convert to fraction form
    21,602.95/29,825.66 = 16,557.66/x
  3. Step 3: Cross multiply
    21,602.95x = 29,825.66 × 16,557.66
  4. Step 4: Simplify right side
    21,602.95x = 493,843,178.95
  5. Step 5: Solve for x
    x = 493,843,178.95/21,602.95
  6. Step 6: Final answer
    x = 22,859.99

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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.