Home / 21,056.51-31,604.61-15,492.89

Finding the Fourth Proportional to 21,056.51, 31,604.61 and 15,492.89

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Solution

The fourth proportional to 21,056.51, 31,604.61 and 15,492.89 is: 23,253.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.51 : 31,604.61 = 15,492.89 : x
  2. Step 2: Convert to fraction form
    21,056.51/31,604.61 = 15,492.89/x
  3. Step 3: Cross multiply
    21,056.51x = 31,604.61 × 15,492.89
  4. Step 4: Simplify right side
    21,056.51x = 489,646,746.22
  5. Step 5: Solve for x
    x = 489,646,746.22/21,056.51
  6. Step 6: Final answer
    x = 23,253.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.