Home / 30,179.79-45,254.50-10,453.05

Finding the Fourth Proportional to 30,179.79, 45,254.50 and 10,453.05

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Solution

The fourth proportional to 30,179.79, 45,254.50 and 10,453.05 is: 15,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.79 : 45,254.50 = 10,453.05 : x
  2. Step 2: Convert to fraction form
    30,179.79/45,254.50 = 10,453.05/x
  3. Step 3: Cross multiply
    30,179.79x = 45,254.50 × 10,453.05
  4. Step 4: Simplify right side
    30,179.79x = 473,047,525.09
  5. Step 5: Solve for x
    x = 473,047,525.09/30,179.79
  6. Step 6: Final answer
    x = 15,674.31

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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.