Home / 26,726.28-36,870.32-15,392.80

Finding the Fourth Proportional to 26,726.28, 36,870.32 and 15,392.80

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Solution

The fourth proportional to 26,726.28, 36,870.32 and 15,392.80 is: 21,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,726.28 : 36,870.32 = 15,392.80 : x
  2. Step 2: Convert to fraction form
    26,726.28/36,870.32 = 15,392.80/x
  3. Step 3: Cross multiply
    26,726.28x = 36,870.32 × 15,392.80
  4. Step 4: Simplify right side
    26,726.28x = 567,537,461.70
  5. Step 5: Solve for x
    x = 567,537,461.70/26,726.28
  6. Step 6: Final answer
    x = 21,235.18

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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.