Home / 28,036.84-38,690.71-15,461.59

Finding the Fourth Proportional to 28,036.84, 38,690.71 and 15,461.59

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Solution

The fourth proportional to 28,036.84, 38,690.71 and 15,461.59 is: 21,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.84 : 38,690.71 = 15,461.59 : x
  2. Step 2: Convert to fraction form
    28,036.84/38,690.71 = 15,461.59/x
  3. Step 3: Cross multiply
    28,036.84x = 38,690.71 × 15,461.59
  4. Step 4: Simplify right side
    28,036.84x = 598,219,894.83
  5. Step 5: Solve for x
    x = 598,219,894.83/28,036.84
  6. Step 6: Final answer
    x = 21,336.92

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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.