Home / 39,187.80-58,814.10-18,160.20

Finding the Fourth Proportional to 39,187.80, 58,814.10 and 18,160.20

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Solution

The fourth proportional to 39,187.80, 58,814.10 and 18,160.20 is: 27,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.80 : 58,814.10 = 18,160.20 : x
  2. Step 2: Convert to fraction form
    39,187.80/58,814.10 = 18,160.20/x
  3. Step 3: Cross multiply
    39,187.80x = 58,814.10 × 18,160.20
  4. Step 4: Simplify right side
    39,187.80x = 1,068,075,818.82
  5. Step 5: Solve for x
    x = 1,068,075,818.82/39,187.80
  6. Step 6: Final answer
    x = 27,255.31

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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.