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Finding the Fourth Proportional to 31,969.04, 47,920.11 and 10,901.70

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Solution

The fourth proportional to 31,969.04, 47,920.11 and 10,901.70 is: 16,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.04 : 47,920.11 = 10,901.70 : x
  2. Step 2: Convert to fraction form
    31,969.04/47,920.11 = 10,901.70/x
  3. Step 3: Cross multiply
    31,969.04x = 47,920.11 × 10,901.70
  4. Step 4: Simplify right side
    31,969.04x = 522,410,663.19
  5. Step 5: Solve for x
    x = 522,410,663.19/31,969.04
  6. Step 6: Final answer
    x = 16,341.15

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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.