Home / 30,976.10-42,747.89-17,547.35

Finding the Fourth Proportional to 30,976.10, 42,747.89 and 17,547.35

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Solution

The fourth proportional to 30,976.10, 42,747.89 and 17,547.35 is: 24,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.10 : 42,747.89 = 17,547.35 : x
  2. Step 2: Convert to fraction form
    30,976.10/42,747.89 = 17,547.35/x
  3. Step 3: Cross multiply
    30,976.10x = 42,747.89 × 17,547.35
  4. Step 4: Simplify right side
    30,976.10x = 750,111,886.12
  5. Step 5: Solve for x
    x = 750,111,886.12/30,976.10
  6. Step 6: Final answer
    x = 24,215.83

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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.