Home / 30,009.29-45,010.28-12,476.84

Finding the Fourth Proportional to 30,009.29, 45,010.28 and 12,476.84

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Solution

The fourth proportional to 30,009.29, 45,010.28 and 12,476.84 is: 18,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.29 : 45,010.28 = 12,476.84 : x
  2. Step 2: Convert to fraction form
    30,009.29/45,010.28 = 12,476.84/x
  3. Step 3: Cross multiply
    30,009.29x = 45,010.28 × 12,476.84
  4. Step 4: Simplify right side
    30,009.29x = 561,585,868.06
  5. Step 5: Solve for x
    x = 561,585,868.06/30,009.29
  6. Step 6: Final answer
    x = 18,713.74

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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.