Home / 26,752.94-36,915.12-15,421.55

Finding the Fourth Proportional to 26,752.94, 36,915.12 and 15,421.55

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Solution

The fourth proportional to 26,752.94, 36,915.12 and 15,421.55 is: 21,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,752.94 : 36,915.12 = 15,421.55 : x
  2. Step 2: Convert to fraction form
    26,752.94/36,915.12 = 15,421.55/x
  3. Step 3: Cross multiply
    26,752.94x = 36,915.12 × 15,421.55
  4. Step 4: Simplify right side
    26,752.94x = 569,288,461.12
  5. Step 5: Solve for x
    x = 569,288,461.12/26,752.94
  6. Step 6: Final answer
    x = 21,279.47

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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.