Home / 21,596.74-29,789.85-14,870.69

Finding the Fourth Proportional to 21,596.74, 29,789.85 and 14,870.69

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Solution

The fourth proportional to 21,596.74, 29,789.85 and 14,870.69 is: 20,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.74 : 29,789.85 = 14,870.69 : x
  2. Step 2: Convert to fraction form
    21,596.74/29,789.85 = 14,870.69/x
  3. Step 3: Cross multiply
    21,596.74x = 29,789.85 × 14,870.69
  4. Step 4: Simplify right side
    21,596.74x = 442,995,475.55
  5. Step 5: Solve for x
    x = 442,995,475.55/21,596.74
  6. Step 6: Final answer
    x = 20,512.15

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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.