Home / 42,935.52-64,442.57-21,890.65

Finding the Fourth Proportional to 42,935.52, 64,442.57 and 21,890.65

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Solution

The fourth proportional to 42,935.52, 64,442.57 and 21,890.65 is: 32,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,935.52 : 64,442.57 = 21,890.65 : x
  2. Step 2: Convert to fraction form
    42,935.52/64,442.57 = 21,890.65/x
  3. Step 3: Cross multiply
    42,935.52x = 64,442.57 × 21,890.65
  4. Step 4: Simplify right side
    42,935.52x = 1,410,689,744.97
  5. Step 5: Solve for x
    x = 1,410,689,744.97/42,935.52
  6. Step 6: Final answer
    x = 32,856.01

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1.5x scale

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.