Home / 31,392.36-47,089.49-9,205.79

Finding the Fourth Proportional to 31,392.36, 47,089.49 and 9,205.79

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Solution

The fourth proportional to 31,392.36, 47,089.49 and 9,205.79 is: 13,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.36 : 47,089.49 = 9,205.79 : x
  2. Step 2: Convert to fraction form
    31,392.36/47,089.49 = 9,205.79/x
  3. Step 3: Cross multiply
    31,392.36x = 47,089.49 × 9,205.79
  4. Step 4: Simplify right side
    31,392.36x = 433,495,674.67
  5. Step 5: Solve for x
    x = 433,495,674.67/31,392.36
  6. Step 6: Final answer
    x = 13,808.95

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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.