Home / 31,686.08-47,539.65-10,628.18

Finding the Fourth Proportional to 31,686.08, 47,539.65 and 10,628.18

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Solution

The fourth proportional to 31,686.08, 47,539.65 and 10,628.18 is: 15,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.08 : 47,539.65 = 10,628.18 : x
  2. Step 2: Convert to fraction form
    31,686.08/47,539.65 = 10,628.18/x
  3. Step 3: Cross multiply
    31,686.08x = 47,539.65 × 10,628.18
  4. Step 4: Simplify right side
    31,686.08x = 505,259,957.34
  5. Step 5: Solve for x
    x = 505,259,957.34/31,686.08
  6. Step 6: Final answer
    x = 15,945.80

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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.