Home / 37,617.84-51,918-21,707.76

Finding the Fourth Proportional to 37,617.84, 51,918 and 21,707.76

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Solution

The fourth proportional to 37,617.84, 51,918 and 21,707.76 is: 29,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,617.84 : 51,918 = 21,707.76 : x
  2. Step 2: Convert to fraction form
    37,617.84/51,918 = 21,707.76/x
  3. Step 3: Cross multiply
    37,617.84x = 51,918 × 21,707.76
  4. Step 4: Simplify right side
    37,617.84x = 1,127,023,483.68
  5. Step 5: Solve for x
    x = 1,127,023,483.68/37,617.84
  6. Step 6: Final answer
    x = 29,959.81

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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.