Home / 30,712.64-42,378.93-17,966.88

Finding the Fourth Proportional to 30,712.64, 42,378.93 and 17,966.88

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Solution

The fourth proportional to 30,712.64, 42,378.93 and 17,966.88 is: 24,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.64 : 42,378.93 = 17,966.88 : x
  2. Step 2: Convert to fraction form
    30,712.64/42,378.93 = 17,966.88/x
  3. Step 3: Cross multiply
    30,712.64x = 42,378.93 × 17,966.88
  4. Step 4: Simplify right side
    30,712.64x = 761,417,149.84
  5. Step 5: Solve for x
    x = 761,417,149.84/30,712.64
  6. Step 6: Final answer
    x = 24,791.66

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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.