Home / 26,689.55-36,827.80-15,354.72

Finding the Fourth Proportional to 26,689.55, 36,827.80 and 15,354.72

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Solution

The fourth proportional to 26,689.55, 36,827.80 and 15,354.72 is: 21,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,689.55 : 36,827.80 = 15,354.72 : x
  2. Step 2: Convert to fraction form
    26,689.55/36,827.80 = 15,354.72/x
  3. Step 3: Cross multiply
    26,689.55x = 36,827.80 × 15,354.72
  4. Step 4: Simplify right side
    26,689.55x = 565,480,518.83
  5. Step 5: Solve for x
    x = 565,480,518.83/26,689.55
  6. Step 6: Final answer
    x = 21,187.34

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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.