Home / 38,160.47-52,661.59-21,166.30

Finding the Fourth Proportional to 38,160.47, 52,661.59 and 21,166.30

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Solution

The fourth proportional to 38,160.47, 52,661.59 and 21,166.30 is: 29,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.47 : 52,661.59 = 21,166.30 : x
  2. Step 2: Convert to fraction form
    38,160.47/52,661.59 = 21,166.30/x
  3. Step 3: Cross multiply
    38,160.47x = 52,661.59 × 21,166.30
  4. Step 4: Simplify right side
    38,160.47x = 1,114,650,848.17
  5. Step 5: Solve for x
    x = 1,114,650,848.17/38,160.47
  6. Step 6: Final answer
    x = 29,209.57

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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.