Home / 28,140.86-39,011.98-26,642.78

Finding the Fourth Proportional to 28,140.86, 39,011.98 and 26,642.78

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Solution

The fourth proportional to 28,140.86, 39,011.98 and 26,642.78 is: 36,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.86 : 39,011.98 = 26,642.78 : x
  2. Step 2: Convert to fraction form
    28,140.86/39,011.98 = 26,642.78/x
  3. Step 3: Cross multiply
    28,140.86x = 39,011.98 × 26,642.78
  4. Step 4: Simplify right side
    28,140.86x = 1,039,387,467.29
  5. Step 5: Solve for x
    x = 1,039,387,467.29/28,140.86
  6. Step 6: Final answer
    x = 36,935.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.