Home / 30,854.84-42,579.71-16,707.65

Finding the Fourth Proportional to 30,854.84, 42,579.71 and 16,707.65

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Solution

The fourth proportional to 30,854.84, 42,579.71 and 16,707.65 is: 23,056.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.84 : 42,579.71 = 16,707.65 : x
  2. Step 2: Convert to fraction form
    30,854.84/42,579.71 = 16,707.65/x
  3. Step 3: Cross multiply
    30,854.84x = 42,579.71 × 16,707.65
  4. Step 4: Simplify right side
    30,854.84x = 711,406,595.34
  5. Step 5: Solve for x
    x = 711,406,595.34/30,854.84
  6. Step 6: Final answer
    x = 23,056.57

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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.