Home / 31,700.05-47,523.31-19,987.45

Finding the Fourth Proportional to 31,700.05, 47,523.31 and 19,987.45

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Solution

The fourth proportional to 31,700.05, 47,523.31 and 19,987.45 is: 29,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.05 : 47,523.31 = 19,987.45 : x
  2. Step 2: Convert to fraction form
    31,700.05/47,523.31 = 19,987.45/x
  3. Step 3: Cross multiply
    31,700.05x = 47,523.31 × 19,987.45
  4. Step 4: Simplify right side
    31,700.05x = 949,869,782.46
  5. Step 5: Solve for x
    x = 949,869,782.46/31,700.05
  6. Step 6: Final answer
    x = 29,964.30

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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.