Home / 21,051.68-29,050.58-12,549.40

Finding the Fourth Proportional to 21,051.68, 29,050.58 and 12,549.40

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Solution

The fourth proportional to 21,051.68, 29,050.58 and 12,549.40 is: 17,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.68 : 29,050.58 = 12,549.40 : x
  2. Step 2: Convert to fraction form
    21,051.68/29,050.58 = 12,549.40/x
  3. Step 3: Cross multiply
    21,051.68x = 29,050.58 × 12,549.40
  4. Step 4: Simplify right side
    21,051.68x = 364,567,307.40
  5. Step 5: Solve for x
    x = 364,567,307.40/21,051.68
  6. Step 6: Final answer
    x = 17,317.73

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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.