Home / 30,437.46-42,010.74-19,808.64

Finding the Fourth Proportional to 30,437.46, 42,010.74 and 19,808.64

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Solution

The fourth proportional to 30,437.46, 42,010.74 and 19,808.64 is: 27,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.46 : 42,010.74 = 19,808.64 : x
  2. Step 2: Convert to fraction form
    30,437.46/42,010.74 = 19,808.64/x
  3. Step 3: Cross multiply
    30,437.46x = 42,010.74 × 19,808.64
  4. Step 4: Simplify right side
    30,437.46x = 832,175,624.79
  5. Step 5: Solve for x
    x = 832,175,624.79/30,437.46
  6. Step 6: Final answer
    x = 27,340.51

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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.