Home / 30,041.12-45,057.84-12,507.68

Finding the Fourth Proportional to 30,041.12, 45,057.84 and 12,507.68

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Solution

The fourth proportional to 30,041.12, 45,057.84 and 12,507.68 is: 18,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.12 : 45,057.84 = 12,507.68 : x
  2. Step 2: Convert to fraction form
    30,041.12/45,057.84 = 12,507.68/x
  3. Step 3: Cross multiply
    30,041.12x = 45,057.84 × 12,507.68
  4. Step 4: Simplify right side
    30,041.12x = 563,569,044.21
  5. Step 5: Solve for x
    x = 563,569,044.21/30,041.12
  6. Step 6: Final answer
    x = 18,759.92

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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.