Home / 47,018.07-70,528.77-15,428.88

Finding the Fourth Proportional to 47,018.07, 70,528.77 and 15,428.88

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Solution

The fourth proportional to 47,018.07, 70,528.77 and 15,428.88 is: 23,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,018.07 : 70,528.77 = 15,428.88 : x
  2. Step 2: Convert to fraction form
    47,018.07/70,528.77 = 15,428.88/x
  3. Step 3: Cross multiply
    47,018.07x = 70,528.77 × 15,428.88
  4. Step 4: Simplify right side
    47,018.07x = 1,088,179,928.88
  5. Step 5: Solve for x
    x = 1,088,179,928.88/47,018.07
  6. Step 6: Final answer
    x = 23,143.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.