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Finding the Fourth Proportional to 31,492.80, 45,343.80 and 31,492.80

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Solution

The fourth proportional to 31,492.80, 45,343.80 and 31,492.80 is: 45,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,492.80 : 45,343.80 = 31,492.80 : x
  2. Step 2: Convert to fraction form
    31,492.80/45,343.80 = 31,492.80/x
  3. Step 3: Cross multiply
    31,492.80x = 45,343.80 × 31,492.80
  4. Step 4: Simplify right side
    31,492.80x = 1,428,003,224.64
  5. Step 5: Solve for x
    x = 1,428,003,224.64/31,492.80
  6. Step 6: Final answer
    x = 45,343.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.