Home / 15,686.22-23,639.48-14,128.16

Finding the Fourth Proportional to 15,686.22, 23,639.48 and 14,128.16

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Solution

The fourth proportional to 15,686.22, 23,639.48 and 14,128.16 is: 21,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.22 : 23,639.48 = 14,128.16 : x
  2. Step 2: Convert to fraction form
    15,686.22/23,639.48 = 14,128.16/x
  3. Step 3: Cross multiply
    15,686.22x = 23,639.48 × 14,128.16
  4. Step 4: Simplify right side
    15,686.22x = 333,982,355.76
  5. Step 5: Solve for x
    x = 333,982,355.76/15,686.22
  6. Step 6: Final answer
    x = 21,291.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.