Home / 39,307.47-54,242.51-21,402.44

Finding the Fourth Proportional to 39,307.47, 54,242.51 and 21,402.44

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Solution

The fourth proportional to 39,307.47, 54,242.51 and 21,402.44 is: 29,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,307.47 : 54,242.51 = 21,402.44 : x
  2. Step 2: Convert to fraction form
    39,307.47/54,242.51 = 21,402.44/x
  3. Step 3: Cross multiply
    39,307.47x = 54,242.51 × 21,402.44
  4. Step 4: Simplify right side
    39,307.47x = 1,160,922,065.72
  5. Step 5: Solve for x
    x = 1,160,922,065.72/39,307.47
  6. Step 6: Final answer
    x = 29,534.39

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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.