Home / 27,852.91-38,439.65-15,913.94

Finding the Fourth Proportional to 27,852.91, 38,439.65 and 15,913.94

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Solution

The fourth proportional to 27,852.91, 38,439.65 and 15,913.94 is: 21,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,852.91 : 38,439.65 = 15,913.94 : x
  2. Step 2: Convert to fraction form
    27,852.91/38,439.65 = 15,913.94/x
  3. Step 3: Cross multiply
    27,852.91x = 38,439.65 × 15,913.94
  4. Step 4: Simplify right side
    27,852.91x = 611,726,041.79
  5. Step 5: Solve for x
    x = 611,726,041.79/27,852.91
  6. Step 6: Final answer
    x = 21,962.73

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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.