Home / 20,569.55-28,386.25-11,494.51

Finding the Fourth Proportional to 20,569.55, 28,386.25 and 11,494.51

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Solution

The fourth proportional to 20,569.55, 28,386.25 and 11,494.51 is: 15,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.55 : 28,386.25 = 11,494.51 : x
  2. Step 2: Convert to fraction form
    20,569.55/28,386.25 = 11,494.51/x
  3. Step 3: Cross multiply
    20,569.55x = 28,386.25 × 11,494.51
  4. Step 4: Simplify right side
    20,569.55x = 326,285,934.79
  5. Step 5: Solve for x
    x = 326,285,934.79/20,569.55
  6. Step 6: Final answer
    x = 15,862.57

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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.