Home / 27,140.48-40,656-13,590.80

Finding the Fourth Proportional to 27,140.48, 40,656 and 13,590.80

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Solution

The fourth proportional to 27,140.48, 40,656 and 13,590.80 is: 20,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.48 : 40,656 = 13,590.80 : x
  2. Step 2: Convert to fraction form
    27,140.48/40,656 = 13,590.80/x
  3. Step 3: Cross multiply
    27,140.48x = 40,656 × 13,590.80
  4. Step 4: Simplify right side
    27,140.48x = 552,547,564.80
  5. Step 5: Solve for x
    x = 552,547,564.80/27,140.48
  6. Step 6: Final answer
    x = 20,358.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.