Home / 23,166.36-31,987.98-21,397.32

Finding the Fourth Proportional to 23,166.36, 31,987.98 and 21,397.32

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Solution

The fourth proportional to 23,166.36, 31,987.98 and 21,397.32 is: 29,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,166.36 : 31,987.98 = 21,397.32 : x
  2. Step 2: Convert to fraction form
    23,166.36/31,987.98 = 21,397.32/x
  3. Step 3: Cross multiply
    23,166.36x = 31,987.98 × 21,397.32
  4. Step 4: Simplify right side
    23,166.36x = 684,457,044.21
  5. Step 5: Solve for x
    x = 684,457,044.21/23,166.36
  6. Step 6: Final answer
    x = 29,545.30

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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.