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Finding the Fourth Proportional to 45,017.86, 67,519.86 and 15,428.92

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Solution

The fourth proportional to 45,017.86, 67,519.86 and 15,428.92 is: 23,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,017.86 : 67,519.86 = 15,428.92 : x
  2. Step 2: Convert to fraction form
    45,017.86/67,519.86 = 15,428.92/x
  3. Step 3: Cross multiply
    45,017.86x = 67,519.86 × 15,428.92
  4. Step 4: Simplify right side
    45,017.86x = 1,041,758,518.35
  5. Step 5: Solve for x
    x = 1,041,758,518.35/45,017.86
  6. Step 6: Final answer
    x = 23,141.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.