Home / 30,718.51-42,376.06-17,963.34

Finding the Fourth Proportional to 30,718.51, 42,376.06 and 17,963.34

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Solution

The fourth proportional to 30,718.51, 42,376.06 and 17,963.34 is: 24,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.51 : 42,376.06 = 17,963.34 : x
  2. Step 2: Convert to fraction form
    30,718.51/42,376.06 = 17,963.34/x
  3. Step 3: Cross multiply
    30,718.51x = 42,376.06 × 17,963.34
  4. Step 4: Simplify right side
    30,718.51x = 761,215,573.64
  5. Step 5: Solve for x
    x = 761,215,573.64/30,718.51
  6. Step 6: Final answer
    x = 24,780.35

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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.