Home / 39,532-54,567.12-28,386.40

Finding the Fourth Proportional to 39,532, 54,567.12 and 28,386.40

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Solution

The fourth proportional to 39,532, 54,567.12 and 28,386.40 is: 39,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,532 : 54,567.12 = 28,386.40 : x
  2. Step 2: Convert to fraction form
    39,532/54,567.12 = 28,386.40/x
  3. Step 3: Cross multiply
    39,532x = 54,567.12 × 28,386.40
  4. Step 4: Simplify right side
    39,532x = 1,548,964,095.17
  5. Step 5: Solve for x
    x = 1,548,964,095.17/39,532
  6. Step 6: Final answer
    x = 39,182.54

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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.