Home / 30,567.10-45,903.48-18,165.04

Finding the Fourth Proportional to 30,567.10, 45,903.48 and 18,165.04

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Solution

The fourth proportional to 30,567.10, 45,903.48 and 18,165.04 is: 27,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.10 : 45,903.48 = 18,165.04 : x
  2. Step 2: Convert to fraction form
    30,567.10/45,903.48 = 18,165.04/x
  3. Step 3: Cross multiply
    30,567.10x = 45,903.48 × 18,165.04
  4. Step 4: Simplify right side
    30,567.10x = 833,838,550.34
  5. Step 5: Solve for x
    x = 833,838,550.34/30,567.10
  6. Step 6: Final answer
    x = 27,278.96

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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.