Home / 31,520.02-47,287.31-10,458.49

Finding the Fourth Proportional to 31,520.02, 47,287.31 and 10,458.49

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Solution

The fourth proportional to 31,520.02, 47,287.31 and 10,458.49 is: 15,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.02 : 47,287.31 = 10,458.49 : x
  2. Step 2: Convert to fraction form
    31,520.02/47,287.31 = 10,458.49/x
  3. Step 3: Cross multiply
    31,520.02x = 47,287.31 × 10,458.49
  4. Step 4: Simplify right side
    31,520.02x = 494,553,858.76
  5. Step 5: Solve for x
    x = 494,553,858.76/31,520.02
  6. Step 6: Final answer
    x = 15,690.15

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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.