Home / 31,064.24-42,869.32-16,917.08

Finding the Fourth Proportional to 31,064.24, 42,869.32 and 16,917.08

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Solution

The fourth proportional to 31,064.24, 42,869.32 and 16,917.08 is: 23,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.24 : 42,869.32 = 16,917.08 : x
  2. Step 2: Convert to fraction form
    31,064.24/42,869.32 = 16,917.08/x
  3. Step 3: Cross multiply
    31,064.24x = 42,869.32 × 16,917.08
  4. Step 4: Simplify right side
    31,064.24x = 725,223,715.99
  5. Step 5: Solve for x
    x = 725,223,715.99/31,064.24
  6. Step 6: Final answer
    x = 23,345.93

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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.