Home / 21,292.08-29,384.55-11,860.98

Finding the Fourth Proportional to 21,292.08, 29,384.55 and 11,860.98

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Solution

The fourth proportional to 21,292.08, 29,384.55 and 11,860.98 is: 16,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.08 : 29,384.55 = 11,860.98 : x
  2. Step 2: Convert to fraction form
    21,292.08/29,384.55 = 11,860.98/x
  3. Step 3: Cross multiply
    21,292.08x = 29,384.55 × 11,860.98
  4. Step 4: Simplify right side
    21,292.08x = 348,529,559.86
  5. Step 5: Solve for x
    x = 348,529,559.86/21,292.08
  6. Step 6: Final answer
    x = 16,368.98

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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.