Home / 32,720.55-45,156.59-18,186.47

Finding the Fourth Proportional to 32,720.55, 45,156.59 and 18,186.47

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Solution

The fourth proportional to 32,720.55, 45,156.59 and 18,186.47 is: 25,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.55 : 45,156.59 = 18,186.47 : x
  2. Step 2: Convert to fraction form
    32,720.55/45,156.59 = 18,186.47/x
  3. Step 3: Cross multiply
    32,720.55x = 45,156.59 × 18,186.47
  4. Step 4: Simplify right side
    32,720.55x = 821,238,969.34
  5. Step 5: Solve for x
    x = 821,238,969.34/32,720.55
  6. Step 6: Final answer
    x = 25,098.57

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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.