Home / 42,309.14-58,318.09-28,692.68

Finding the Fourth Proportional to 42,309.14, 58,318.09 and 28,692.68

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Solution

The fourth proportional to 42,309.14, 58,318.09 and 28,692.68 is: 39,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.14 : 58,318.09 = 28,692.68 : x
  2. Step 2: Convert to fraction form
    42,309.14/58,318.09 = 28,692.68/x
  3. Step 3: Cross multiply
    42,309.14x = 58,318.09 × 28,692.68
  4. Step 4: Simplify right side
    42,309.14x = 1,673,301,931.26
  5. Step 5: Solve for x
    x = 1,673,301,931.26/42,309.14
  6. Step 6: Final answer
    x = 39,549.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.