Home / 30,315.51-45,476.91-15,520.46

Finding the Fourth Proportional to 30,315.51, 45,476.91 and 15,520.46

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Solution

The fourth proportional to 30,315.51, 45,476.91 and 15,520.46 is: 23,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,315.51 : 45,476.91 = 15,520.46 : x
  2. Step 2: Convert to fraction form
    30,315.51/45,476.91 = 15,520.46/x
  3. Step 3: Cross multiply
    30,315.51x = 45,476.91 × 15,520.46
  4. Step 4: Simplify right side
    30,315.51x = 705,822,335.19
  5. Step 5: Solve for x
    x = 705,822,335.19/30,315.51
  6. Step 6: Final answer
    x = 23,282.55

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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.