Home / 21,830.12-32,751.57-7,038.74

Finding the Fourth Proportional to 21,830.12, 32,751.57 and 7,038.74

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Solution

The fourth proportional to 21,830.12, 32,751.57 and 7,038.74 is: 10,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.12 : 32,751.57 = 7,038.74 : x
  2. Step 2: Convert to fraction form
    21,830.12/32,751.57 = 7,038.74/x
  3. Step 3: Cross multiply
    21,830.12x = 32,751.57 × 7,038.74
  4. Step 4: Simplify right side
    21,830.12x = 230,529,785.82
  5. Step 5: Solve for x
    x = 230,529,785.82/21,830.12
  6. Step 6: Final answer
    x = 10,560.17

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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.