Home / 31,851.02-47,778.78-9,666.20

Finding the Fourth Proportional to 31,851.02, 47,778.78 and 9,666.20

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Solution

The fourth proportional to 31,851.02, 47,778.78 and 9,666.20 is: 14,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,851.02 : 47,778.78 = 9,666.20 : x
  2. Step 2: Convert to fraction form
    31,851.02/47,778.78 = 9,666.20/x
  3. Step 3: Cross multiply
    31,851.02x = 47,778.78 × 9,666.20
  4. Step 4: Simplify right side
    31,851.02x = 461,839,243.24
  5. Step 5: Solve for x
    x = 461,839,243.24/31,851.02
  6. Step 6: Final answer
    x = 14,499.98

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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.