Home / 31,811.00-47,652.80-19,153.71

Finding the Fourth Proportional to 31,811.00, 47,652.80 and 19,153.71

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Solution

The fourth proportional to 31,811.00, 47,652.80 and 19,153.71 is: 28,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.00 : 47,652.80 = 19,153.71 : x
  2. Step 2: Convert to fraction form
    31,811.00/47,652.80 = 19,153.71/x
  3. Step 3: Cross multiply
    31,811.00x = 47,652.80 × 19,153.71
  4. Step 4: Simplify right side
    31,811.00x = 912,727,816.12
  5. Step 5: Solve for x
    x = 912,727,816.12/31,811.00
  6. Step 6: Final answer
    x = 28,692.21

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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.