Home / 42,154.09-63,235.37-12,169.08

Finding the Fourth Proportional to 42,154.09, 63,235.37 and 12,169.08

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Solution

The fourth proportional to 42,154.09, 63,235.37 and 12,169.08 is: 18,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.09 : 63,235.37 = 12,169.08 : x
  2. Step 2: Convert to fraction form
    42,154.09/63,235.37 = 12,169.08/x
  3. Step 3: Cross multiply
    42,154.09x = 63,235.37 × 12,169.08
  4. Step 4: Simplify right side
    42,154.09x = 769,516,276.36
  5. Step 5: Solve for x
    x = 769,516,276.36/42,154.09
  6. Step 6: Final answer
    x = 18,254.84

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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.