Home / 31,345.55-43,256.89-17,916.77

Finding the Fourth Proportional to 31,345.55, 43,256.89 and 17,916.77

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Solution

The fourth proportional to 31,345.55, 43,256.89 and 17,916.77 is: 24,725.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.55 : 43,256.89 = 17,916.77 : x
  2. Step 2: Convert to fraction form
    31,345.55/43,256.89 = 17,916.77/x
  3. Step 3: Cross multiply
    31,345.55x = 43,256.89 × 17,916.77
  4. Step 4: Simplify right side
    31,345.55x = 775,023,532.76
  5. Step 5: Solve for x
    x = 775,023,532.76/31,345.55
  6. Step 6: Final answer
    x = 24,725.15

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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.