Home / 21,679.65-29,932.26-14,518.74

Finding the Fourth Proportional to 21,679.65, 29,932.26 and 14,518.74

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Solution

The fourth proportional to 21,679.65, 29,932.26 and 14,518.74 is: 20,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.65 : 29,932.26 = 14,518.74 : x
  2. Step 2: Convert to fraction form
    21,679.65/29,932.26 = 14,518.74/x
  3. Step 3: Cross multiply
    21,679.65x = 29,932.26 × 14,518.74
  4. Step 4: Simplify right side
    21,679.65x = 434,578,700.55
  5. Step 5: Solve for x
    x = 434,578,700.55/21,679.65
  6. Step 6: Final answer
    x = 20,045.47

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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.