Home / 30,714.64-42,381.69-17,968.88

Finding the Fourth Proportional to 30,714.64, 42,381.69 and 17,968.88

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Solution

The fourth proportional to 30,714.64, 42,381.69 and 17,968.88 is: 24,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.64 : 42,381.69 = 17,968.88 : x
  2. Step 2: Convert to fraction form
    30,714.64/42,381.69 = 17,968.88/x
  3. Step 3: Cross multiply
    30,714.64x = 42,381.69 × 17,968.88
  4. Step 4: Simplify right side
    30,714.64x = 761,551,501.81
  5. Step 5: Solve for x
    x = 761,551,501.81/30,714.64
  6. Step 6: Final answer
    x = 24,794.41

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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.