Home / 28,953.63-39,956.01-15,705.63

Finding the Fourth Proportional to 28,953.63, 39,956.01 and 15,705.63

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Solution

The fourth proportional to 28,953.63, 39,956.01 and 15,705.63 is: 21,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.63 : 39,956.01 = 15,705.63 : x
  2. Step 2: Convert to fraction form
    28,953.63/39,956.01 = 15,705.63/x
  3. Step 3: Cross multiply
    28,953.63x = 39,956.01 × 15,705.63
  4. Step 4: Simplify right side
    28,953.63x = 627,534,031.03
  5. Step 5: Solve for x
    x = 627,534,031.03/28,953.63
  6. Step 6: Final answer
    x = 21,673.76

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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.