Home / 31,065.04-42,870.25-16,917.87

Finding the Fourth Proportional to 31,065.04, 42,870.25 and 16,917.87

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Solution

The fourth proportional to 31,065.04, 42,870.25 and 16,917.87 is: 23,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065.04 : 42,870.25 = 16,917.87 : x
  2. Step 2: Convert to fraction form
    31,065.04/42,870.25 = 16,917.87/x
  3. Step 3: Cross multiply
    31,065.04x = 42,870.25 × 16,917.87
  4. Step 4: Simplify right side
    31,065.04x = 725,273,316.37
  5. Step 5: Solve for x
    x = 725,273,316.37/31,065.04
  6. Step 6: Final answer
    x = 23,346.93

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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.