Home / 26,123.78-36,051.62-15,369.48

Finding the Fourth Proportional to 26,123.78, 36,051.62 and 15,369.48

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Solution

The fourth proportional to 26,123.78, 36,051.62 and 15,369.48 is: 21,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,123.78 : 36,051.62 = 15,369.48 : x
  2. Step 2: Convert to fraction form
    26,123.78/36,051.62 = 15,369.48/x
  3. Step 3: Cross multiply
    26,123.78x = 36,051.62 × 15,369.48
  4. Step 4: Simplify right side
    26,123.78x = 554,094,575.71
  5. Step 5: Solve for x
    x = 554,094,575.71/26,123.78
  6. Step 6: Final answer
    x = 21,210.35

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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.