Home / 29,133.79-40,356.90-28,543.30

Finding the Fourth Proportional to 29,133.79, 40,356.90 and 28,543.30

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Solution

The fourth proportional to 29,133.79, 40,356.90 and 28,543.30 is: 39,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,133.79 : 40,356.90 = 28,543.30 : x
  2. Step 2: Convert to fraction form
    29,133.79/40,356.90 = 28,543.30/x
  3. Step 3: Cross multiply
    29,133.79x = 40,356.90 × 28,543.30
  4. Step 4: Simplify right side
    29,133.79x = 1,151,919,154.22
  5. Step 5: Solve for x
    x = 1,151,919,154.22/29,133.79
  6. Step 6: Final answer
    x = 39,538.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.