Home / 18,070.16-26,972.89-15,939.68

Finding the Fourth Proportional to 18,070.16, 26,972.89 and 15,939.68

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Solution

The fourth proportional to 18,070.16, 26,972.89 and 15,939.68 is: 23,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.16 : 26,972.89 = 15,939.68 : x
  2. Step 2: Convert to fraction form
    18,070.16/26,972.89 = 15,939.68/x
  3. Step 3: Cross multiply
    18,070.16x = 26,972.89 × 15,939.68
  4. Step 4: Simplify right side
    18,070.16x = 429,939,060.56
  5. Step 5: Solve for x
    x = 429,939,060.56/18,070.16
  6. Step 6: Final answer
    x = 23,792.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.