Home / 21,374.84-29,492.60-12,417.72

Finding the Fourth Proportional to 21,374.84, 29,492.60 and 12,417.72

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Solution

The fourth proportional to 21,374.84, 29,492.60 and 12,417.72 is: 17,133.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.84 : 29,492.60 = 12,417.72 : x
  2. Step 2: Convert to fraction form
    21,374.84/29,492.60 = 12,417.72/x
  3. Step 3: Cross multiply
    21,374.84x = 29,492.60 × 12,417.72
  4. Step 4: Simplify right side
    21,374.84x = 366,230,848.87
  5. Step 5: Solve for x
    x = 366,230,848.87/21,374.84
  6. Step 6: Final answer
    x = 17,133.74

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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.