Home / 31,126.77-42,953.49-19,191.24

Finding the Fourth Proportional to 31,126.77, 42,953.49 and 19,191.24

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Solution

The fourth proportional to 31,126.77, 42,953.49 and 19,191.24 is: 26,483.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.77 : 42,953.49 = 19,191.24 : x
  2. Step 2: Convert to fraction form
    31,126.77/42,953.49 = 19,191.24/x
  3. Step 3: Cross multiply
    31,126.77x = 42,953.49 × 19,191.24
  4. Step 4: Simplify right side
    31,126.77x = 824,330,735.43
  5. Step 5: Solve for x
    x = 824,330,735.43/31,126.77
  6. Step 6: Final answer
    x = 26,483.02

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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.