Home / 15,718.40-23,445.16-14,629.76

Finding the Fourth Proportional to 15,718.40, 23,445.16 and 14,629.76

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Solution

The fourth proportional to 15,718.40, 23,445.16 and 14,629.76 is: 21,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718.40 : 23,445.16 = 14,629.76 : x
  2. Step 2: Convert to fraction form
    15,718.40/23,445.16 = 14,629.76/x
  3. Step 3: Cross multiply
    15,718.40x = 23,445.16 × 14,629.76
  4. Step 4: Simplify right side
    15,718.40x = 342,997,063.96
  5. Step 5: Solve for x
    x = 342,997,063.96/15,718.40
  6. Step 6: Final answer
    x = 21,821.37

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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.