Home / 31,014.66-42,800.68-19,070.94

Finding the Fourth Proportional to 31,014.66, 42,800.68 and 19,070.94

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Solution

The fourth proportional to 31,014.66, 42,800.68 and 19,070.94 is: 26,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,014.66 : 42,800.68 = 19,070.94 : x
  2. Step 2: Convert to fraction form
    31,014.66/42,800.68 = 19,070.94/x
  3. Step 3: Cross multiply
    31,014.66x = 42,800.68 × 19,070.94
  4. Step 4: Simplify right side
    31,014.66x = 816,248,938.56
  5. Step 5: Solve for x
    x = 816,248,938.56/31,014.66
  6. Step 6: Final answer
    x = 26,318.17

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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.