Home / 15,718.32-23,468.40-14,143.68

Finding the Fourth Proportional to 15,718.32, 23,468.40 and 14,143.68

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Solution

The fourth proportional to 15,718.32, 23,468.40 and 14,143.68 is: 21,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.32 : 23,468.40 = 14,143.68 : x
  2. Step 2: Convert to fraction form
    15,718.32/23,468.40 = 14,143.68/x
  3. Step 3: Cross multiply
    15,718.32x = 23,468.40 × 14,143.68
  4. Step 4: Simplify right side
    15,718.32x = 331,929,539.71
  5. Step 5: Solve for x
    x = 331,929,539.71/15,718.32
  6. Step 6: Final answer
    x = 21,117.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.