Home / 27,784.15-38,332.59-15,838.87

Finding the Fourth Proportional to 27,784.15, 38,332.59 and 15,838.87

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Solution

The fourth proportional to 27,784.15, 38,332.59 and 15,838.87 is: 21,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.15 : 38,332.59 = 15,838.87 : x
  2. Step 2: Convert to fraction form
    27,784.15/38,332.59 = 15,838.87/x
  3. Step 3: Cross multiply
    27,784.15x = 38,332.59 × 15,838.87
  4. Step 4: Simplify right side
    27,784.15x = 607,144,909.77
  5. Step 5: Solve for x
    x = 607,144,909.77/27,784.15
  6. Step 6: Final answer
    x = 21,852.20

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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.