Home / 27,807.80-38,364.99-19,307.66

Finding the Fourth Proportional to 27,807.80, 38,364.99 and 19,307.66

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Solution

The fourth proportional to 27,807.80, 38,364.99 and 19,307.66 is: 26,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.80 : 38,364.99 = 19,307.66 : x
  2. Step 2: Convert to fraction form
    27,807.80/38,364.99 = 19,307.66/x
  3. Step 3: Cross multiply
    27,807.80x = 38,364.99 × 19,307.66
  4. Step 4: Simplify right side
    27,807.80x = 740,738,182.82
  5. Step 5: Solve for x
    x = 740,738,182.82/27,807.80
  6. Step 6: Final answer
    x = 26,637.78

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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.