Home / 39,417.39-54,371.67-28,090.51

Finding the Fourth Proportional to 39,417.39, 54,371.67 and 28,090.51

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Solution

The fourth proportional to 39,417.39, 54,371.67 and 28,090.51 is: 38,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,417.39 : 54,371.67 = 28,090.51 : x
  2. Step 2: Convert to fraction form
    39,417.39/54,371.67 = 28,090.51/x
  3. Step 3: Cross multiply
    39,417.39x = 54,371.67 × 28,090.51
  4. Step 4: Simplify right side
    39,417.39x = 1,527,328,075.78
  5. Step 5: Solve for x
    x = 1,527,328,075.78/39,417.39
  6. Step 6: Final answer
    x = 38,747.57

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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.