Home / 30,976.72-42,748.75-17,547.97

Finding the Fourth Proportional to 30,976.72, 42,748.75 and 17,547.97

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Solution

The fourth proportional to 30,976.72, 42,748.75 and 17,547.97 is: 24,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.72 : 42,748.75 = 17,547.97 : x
  2. Step 2: Convert to fraction form
    30,976.72/42,748.75 = 17,547.97/x
  3. Step 3: Cross multiply
    30,976.72x = 42,748.75 × 17,547.97
  4. Step 4: Simplify right side
    30,976.72x = 750,153,738.67
  5. Step 5: Solve for x
    x = 750,153,738.67/30,976.72
  6. Step 6: Final answer
    x = 24,216.69

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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.