Home / 42,935.20-64,395.50-11,345.62

Finding the Fourth Proportional to 42,935.20, 64,395.50 and 11,345.62

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Solution

The fourth proportional to 42,935.20, 64,395.50 and 11,345.62 is: 17,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,935.20 : 64,395.50 = 11,345.62 : x
  2. Step 2: Convert to fraction form
    42,935.20/64,395.50 = 11,345.62/x
  3. Step 3: Cross multiply
    42,935.20x = 64,395.50 × 11,345.62
  4. Step 4: Simplify right side
    42,935.20x = 730,606,872.71
  5. Step 5: Solve for x
    x = 730,606,872.71/42,935.20
  6. Step 6: Final answer
    x = 17,016.50

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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.