Home / 39,640.17-54,720.89-27,750.18

Finding the Fourth Proportional to 39,640.17, 54,720.89 and 27,750.18

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Solution

The fourth proportional to 39,640.17, 54,720.89 and 27,750.18 is: 38,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.17 : 54,720.89 = 27,750.18 : x
  2. Step 2: Convert to fraction form
    39,640.17/54,720.89 = 27,750.18/x
  3. Step 3: Cross multiply
    39,640.17x = 54,720.89 × 27,750.18
  4. Step 4: Simplify right side
    39,640.17x = 1,518,514,408.51
  5. Step 5: Solve for x
    x = 1,518,514,408.51/39,640.17
  6. Step 6: Final answer
    x = 38,307.46

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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.