Home / 26,312.51-36,298.61-19,131.30

Finding the Fourth Proportional to 26,312.51, 36,298.61 and 19,131.30

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Solution

The fourth proportional to 26,312.51, 36,298.61 and 19,131.30 is: 26,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,312.51 : 36,298.61 = 19,131.30 : x
  2. Step 2: Convert to fraction form
    26,312.51/36,298.61 = 19,131.30/x
  3. Step 3: Cross multiply
    26,312.51x = 36,298.61 × 19,131.30
  4. Step 4: Simplify right side
    26,312.51x = 694,439,573.58
  5. Step 5: Solve for x
    x = 694,439,573.58/26,312.51
  6. Step 6: Final answer
    x = 26,391.99

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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.