Home / 19,420.90-26,797.53-10,920.82

Finding the Fourth Proportional to 19,420.90, 26,797.53 and 10,920.82

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Solution

The fourth proportional to 19,420.90, 26,797.53 and 10,920.82 is: 15,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.90 : 26,797.53 = 10,920.82 : x
  2. Step 2: Convert to fraction form
    19,420.90/26,797.53 = 10,920.82/x
  3. Step 3: Cross multiply
    19,420.90x = 26,797.53 × 10,920.82
  4. Step 4: Simplify right side
    19,420.90x = 292,651,001.57
  5. Step 5: Solve for x
    x = 292,651,001.57/19,420.90
  6. Step 6: Final answer
    x = 15,068.87

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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.