Home / 28,012.94-38,656.88-15,265.87

Finding the Fourth Proportional to 28,012.94, 38,656.88 and 15,265.87

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Solution

The fourth proportional to 28,012.94, 38,656.88 and 15,265.87 is: 21,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.94 : 38,656.88 = 15,265.87 : x
  2. Step 2: Convert to fraction form
    28,012.94/38,656.88 = 15,265.87/x
  3. Step 3: Cross multiply
    28,012.94x = 38,656.88 × 15,265.87
  4. Step 4: Simplify right side
    28,012.94x = 590,130,904.69
  5. Step 5: Solve for x
    x = 590,130,904.69/28,012.94
  6. Step 6: Final answer
    x = 21,066.37

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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.