Home / 20,726.30-28,624.01-14,282.69

Finding the Fourth Proportional to 20,726.30, 28,624.01 and 14,282.69

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Solution

The fourth proportional to 20,726.30, 28,624.01 and 14,282.69 is: 19,725.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.30 : 28,624.01 = 14,282.69 : x
  2. Step 2: Convert to fraction form
    20,726.30/28,624.01 = 14,282.69/x
  3. Step 3: Cross multiply
    20,726.30x = 28,624.01 × 14,282.69
  4. Step 4: Simplify right side
    20,726.30x = 408,827,915.09
  5. Step 5: Solve for x
    x = 408,827,915.09/20,726.30
  6. Step 6: Final answer
    x = 19,725.08

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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.