Home / 21,460.16-32,148.72-12,071.66

Finding the Fourth Proportional to 21,460.16, 32,148.72 and 12,071.66

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Solution

The fourth proportional to 21,460.16, 32,148.72 and 12,071.66 is: 18,084.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,460.16 : 32,148.72 = 12,071.66 : x
  2. Step 2: Convert to fraction form
    21,460.16/32,148.72 = 12,071.66/x
  3. Step 3: Cross multiply
    21,460.16x = 32,148.72 × 12,071.66
  4. Step 4: Simplify right side
    21,460.16x = 388,088,256.53
  5. Step 5: Solve for x
    x = 388,088,256.53/21,460.16
  6. Step 6: Final answer
    x = 18,084.13

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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.