Home / 42,790.28-64,169.04-14,705.12

Finding the Fourth Proportional to 42,790.28, 64,169.04 and 14,705.12

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Solution

The fourth proportional to 42,790.28, 64,169.04 and 14,705.12 is: 22,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.28 : 64,169.04 = 14,705.12 : x
  2. Step 2: Convert to fraction form
    42,790.28/64,169.04 = 14,705.12/x
  3. Step 3: Cross multiply
    42,790.28x = 64,169.04 × 14,705.12
  4. Step 4: Simplify right side
    42,790.28x = 943,613,433.48
  5. Step 5: Solve for x
    x = 943,613,433.48/42,790.28
  6. Step 6: Final answer
    x = 22,052.05

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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.