Home / 31,400.31-43,332.30-17,971.50

Finding the Fourth Proportional to 31,400.31, 43,332.30 and 17,971.50

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Solution

The fourth proportional to 31,400.31, 43,332.30 and 17,971.50 is: 24,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.31 : 43,332.30 = 17,971.50 : x
  2. Step 2: Convert to fraction form
    31,400.31/43,332.30 = 17,971.50/x
  3. Step 3: Cross multiply
    31,400.31x = 43,332.30 × 17,971.50
  4. Step 4: Simplify right side
    31,400.31x = 778,746,429.45
  5. Step 5: Solve for x
    x = 778,746,429.45/31,400.31
  6. Step 6: Final answer
    x = 24,800.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.