Home / 26,000.16-35,878.80-15,390.76

Finding the Fourth Proportional to 26,000.16, 35,878.80 and 15,390.76

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Solution

The fourth proportional to 26,000.16, 35,878.80 and 15,390.76 is: 21,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,000.16 : 35,878.80 = 15,390.76 : x
  2. Step 2: Convert to fraction form
    26,000.16/35,878.80 = 15,390.76/x
  3. Step 3: Cross multiply
    26,000.16x = 35,878.80 × 15,390.76
  4. Step 4: Simplify right side
    26,000.16x = 552,201,999.89
  5. Step 5: Solve for x
    x = 552,201,999.89/26,000.16
  6. Step 6: Final answer
    x = 21,238.41

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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.