Home / 31,872.02-47,808.09-9,685.31

Finding the Fourth Proportional to 31,872.02, 47,808.09 and 9,685.31

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Solution

The fourth proportional to 31,872.02, 47,808.09 and 9,685.31 is: 14,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,872.02 : 47,808.09 = 9,685.31 : x
  2. Step 2: Convert to fraction form
    31,872.02/47,808.09 = 9,685.31/x
  3. Step 3: Cross multiply
    31,872.02x = 47,808.09 × 9,685.31
  4. Step 4: Simplify right side
    31,872.02x = 463,035,933.12
  5. Step 5: Solve for x
    x = 463,035,933.12/31,872.02
  6. Step 6: Final answer
    x = 14,527.98

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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.