Home / 20,541.70-28,347.47-11,110.26

Finding the Fourth Proportional to 20,541.70, 28,347.47 and 11,110.26

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Solution

The fourth proportional to 20,541.70, 28,347.47 and 11,110.26 is: 15,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.70 : 28,347.47 = 11,110.26 : x
  2. Step 2: Convert to fraction form
    20,541.70/28,347.47 = 11,110.26/x
  3. Step 3: Cross multiply
    20,541.70x = 28,347.47 × 11,110.26
  4. Step 4: Simplify right side
    20,541.70x = 314,947,854.46
  5. Step 5: Solve for x
    x = 314,947,854.46/20,541.70
  6. Step 6: Final answer
    x = 15,332.12

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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.