Home / 28,114.81-38,797.71-15,368.02

Finding the Fourth Proportional to 28,114.81, 38,797.71 and 15,368.02

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Solution

The fourth proportional to 28,114.81, 38,797.71 and 15,368.02 is: 21,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.81 : 38,797.71 = 15,368.02 : x
  2. Step 2: Convert to fraction form
    28,114.81/38,797.71 = 15,368.02/x
  3. Step 3: Cross multiply
    28,114.81x = 38,797.71 × 15,368.02
  4. Step 4: Simplify right side
    28,114.81x = 596,244,031.73
  5. Step 5: Solve for x
    x = 596,244,031.73/28,114.81
  6. Step 6: Final answer
    x = 21,207.47

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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.