Home / 23,139.65-31,916.48-14,190.72

Finding the Fourth Proportional to 23,139.65, 31,916.48 and 14,190.72

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Solution

The fourth proportional to 23,139.65, 31,916.48 and 14,190.72 is: 19,573.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.65 : 31,916.48 = 14,190.72 : x
  2. Step 2: Convert to fraction form
    23,139.65/31,916.48 = 14,190.72/x
  3. Step 3: Cross multiply
    23,139.65x = 31,916.48 × 14,190.72
  4. Step 4: Simplify right side
    23,139.65x = 452,917,680.32
  5. Step 5: Solve for x
    x = 452,917,680.32/23,139.65
  6. Step 6: Final answer
    x = 19,573.23

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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.