Home / 31,985.71-47,977.18-10,927.63

Finding the Fourth Proportional to 31,985.71, 47,977.18 and 10,927.63

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Solution

The fourth proportional to 31,985.71, 47,977.18 and 10,927.63 is: 16,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.71 : 47,977.18 = 10,927.63 : x
  2. Step 2: Convert to fraction form
    31,985.71/47,977.18 = 10,927.63/x
  3. Step 3: Cross multiply
    31,985.71x = 47,977.18 × 10,927.63
  4. Step 4: Simplify right side
    31,985.71x = 524,276,765.20
  5. Step 5: Solve for x
    x = 524,276,765.20/31,985.71
  6. Step 6: Final answer
    x = 16,390.97

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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.