Home / 38,155.57-52,653.22-21,160.51

Finding the Fourth Proportional to 38,155.57, 52,653.22 and 21,160.51

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Solution

The fourth proportional to 38,155.57, 52,653.22 and 21,160.51 is: 29,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.57 : 52,653.22 = 21,160.51 : x
  2. Step 2: Convert to fraction form
    38,155.57/52,653.22 = 21,160.51/x
  3. Step 3: Cross multiply
    38,155.57x = 52,653.22 × 21,160.51
  4. Step 4: Simplify right side
    38,155.57x = 1,114,168,988.34
  5. Step 5: Solve for x
    x = 1,114,168,988.34/38,155.57
  6. Step 6: Final answer
    x = 29,200.69

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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.