Home / 23,045.19-31,812.17-15,495.90

Finding the Fourth Proportional to 23,045.19, 31,812.17 and 15,495.90

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Solution

The fourth proportional to 23,045.19, 31,812.17 and 15,495.90 is: 21,390.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,045.19 : 31,812.17 = 15,495.90 : x
  2. Step 2: Convert to fraction form
    23,045.19/31,812.17 = 15,495.90/x
  3. Step 3: Cross multiply
    23,045.19x = 31,812.17 × 15,495.90
  4. Step 4: Simplify right side
    23,045.19x = 492,958,127.62
  5. Step 5: Solve for x
    x = 492,958,127.62/23,045.19
  6. Step 6: Final answer
    x = 21,390.93

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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.