Home / 28,699.36-39,607.94-15,956.90

Finding the Fourth Proportional to 28,699.36, 39,607.94 and 15,956.90

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Solution

The fourth proportional to 28,699.36, 39,607.94 and 15,956.90 is: 22,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.36 : 39,607.94 = 15,956.90 : x
  2. Step 2: Convert to fraction form
    28,699.36/39,607.94 = 15,956.90/x
  3. Step 3: Cross multiply
    28,699.36x = 39,607.94 × 15,956.90
  4. Step 4: Simplify right side
    28,699.36x = 632,019,838.41
  5. Step 5: Solve for x
    x = 632,019,838.41/28,699.36
  6. Step 6: Final answer
    x = 22,022.09

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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.