Home / 28,213.60-38,935.29-15,465.94

Finding the Fourth Proportional to 28,213.60, 38,935.29 and 15,465.94

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Solution

The fourth proportional to 28,213.60, 38,935.29 and 15,465.94 is: 21,343.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.60 : 38,935.29 = 15,465.94 : x
  2. Step 2: Convert to fraction form
    28,213.60/38,935.29 = 15,465.94/x
  3. Step 3: Cross multiply
    28,213.60x = 38,935.29 × 15,465.94
  4. Step 4: Simplify right side
    28,213.60x = 602,170,859.02
  5. Step 5: Solve for x
    x = 602,170,859.02/28,213.60
  6. Step 6: Final answer
    x = 21,343.28

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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.