Home / 30,265.12-45,392.64-14,479.84

Finding the Fourth Proportional to 30,265.12, 45,392.64 and 14,479.84

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Solution

The fourth proportional to 30,265.12, 45,392.64 and 14,479.84 is: 21,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,265.12 : 45,392.64 = 14,479.84 : x
  2. Step 2: Convert to fraction form
    30,265.12/45,392.64 = 14,479.84/x
  3. Step 3: Cross multiply
    30,265.12x = 45,392.64 × 14,479.84
  4. Step 4: Simplify right side
    30,265.12x = 657,278,164.38
  5. Step 5: Solve for x
    x = 657,278,164.38/30,265.12
  6. Step 6: Final answer
    x = 21,717.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.