Home / 21,487.51-29,653.28-12,056.77

Finding the Fourth Proportional to 21,487.51, 29,653.28 and 12,056.77

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Solution

The fourth proportional to 21,487.51, 29,653.28 and 12,056.77 is: 16,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.51 : 29,653.28 = 12,056.77 : x
  2. Step 2: Convert to fraction form
    21,487.51/29,653.28 = 12,056.77/x
  3. Step 3: Cross multiply
    21,487.51x = 29,653.28 × 12,056.77
  4. Step 4: Simplify right side
    21,487.51x = 357,522,776.71
  5. Step 5: Solve for x
    x = 357,522,776.71/21,487.51
  6. Step 6: Final answer
    x = 16,638.63

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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.