Home / 42,900.66-64,324.95-19,203.78

Finding the Fourth Proportional to 42,900.66, 64,324.95 and 19,203.78

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Solution

The fourth proportional to 42,900.66, 64,324.95 and 19,203.78 is: 28,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,900.66 : 64,324.95 = 19,203.78 : x
  2. Step 2: Convert to fraction form
    42,900.66/64,324.95 = 19,203.78/x
  3. Step 3: Cross multiply
    42,900.66x = 64,324.95 × 19,203.78
  4. Step 4: Simplify right side
    42,900.66x = 1,235,282,188.31
  5. Step 5: Solve for x
    x = 1,235,282,188.31/42,900.66
  6. Step 6: Final answer
    x = 28,794.01

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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.