Home / 31,528.13-47,292.39-8,154.77

Finding the Fourth Proportional to 31,528.13, 47,292.39 and 8,154.77

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Solution

The fourth proportional to 31,528.13, 47,292.39 and 8,154.77 is: 12,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.13 : 47,292.39 = 8,154.77 : x
  2. Step 2: Convert to fraction form
    31,528.13/47,292.39 = 8,154.77/x
  3. Step 3: Cross multiply
    31,528.13x = 47,292.39 × 8,154.77
  4. Step 4: Simplify right side
    31,528.13x = 385,658,326.74
  5. Step 5: Solve for x
    x = 385,658,326.74/31,528.13
  6. Step 6: Final answer
    x = 12,232.20

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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.