Home / 30,555.32-45,806.85-13,909.41

Finding the Fourth Proportional to 30,555.32, 45,806.85 and 13,909.41

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Solution

The fourth proportional to 30,555.32, 45,806.85 and 13,909.41 is: 20,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555.32 : 45,806.85 = 13,909.41 : x
  2. Step 2: Convert to fraction form
    30,555.32/45,806.85 = 13,909.41/x
  3. Step 3: Cross multiply
    30,555.32x = 45,806.85 × 13,909.41
  4. Step 4: Simplify right side
    30,555.32x = 637,146,257.46
  5. Step 5: Solve for x
    x = 637,146,257.46/30,555.32
  6. Step 6: Final answer
    x = 20,852.22

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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.