Home / 19,915.84-27,482.28-11,417.86

Finding the Fourth Proportional to 19,915.84, 27,482.28 and 11,417.86

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Solution

The fourth proportional to 19,915.84, 27,482.28 and 11,417.86 is: 15,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.84 : 27,482.28 = 11,417.86 : x
  2. Step 2: Convert to fraction form
    19,915.84/27,482.28 = 11,417.86/x
  3. Step 3: Cross multiply
    19,915.84x = 27,482.28 × 11,417.86
  4. Step 4: Simplify right side
    19,915.84x = 313,788,825.52
  5. Step 5: Solve for x
    x = 313,788,825.52/19,915.84
  6. Step 6: Final answer
    x = 15,755.74

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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.