Home / 31,445.76-47,154.80-16,651.21

Finding the Fourth Proportional to 31,445.76, 47,154.80 and 16,651.21

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Solution

The fourth proportional to 31,445.76, 47,154.80 and 16,651.21 is: 24,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.76 : 47,154.80 = 16,651.21 : x
  2. Step 2: Convert to fraction form
    31,445.76/47,154.80 = 16,651.21/x
  3. Step 3: Cross multiply
    31,445.76x = 47,154.80 × 16,651.21
  4. Step 4: Simplify right side
    31,445.76x = 785,184,604.48
  5. Step 5: Solve for x
    x = 785,184,604.48/31,445.76
  6. Step 6: Final answer
    x = 24,969.49

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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.