Home / 30,056.66-45,100.71-12,300.50

Finding the Fourth Proportional to 30,056.66, 45,100.71 and 12,300.50

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Solution

The fourth proportional to 30,056.66, 45,100.71 and 12,300.50 is: 18,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,056.66 : 45,100.71 = 12,300.50 : x
  2. Step 2: Convert to fraction form
    30,056.66/45,100.71 = 12,300.50/x
  3. Step 3: Cross multiply
    30,056.66x = 45,100.71 × 12,300.50
  4. Step 4: Simplify right side
    30,056.66x = 554,761,396.11
  5. Step 5: Solve for x
    x = 554,761,396.11/30,056.66
  6. Step 6: Final answer
    x = 18,457.19

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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.