Home / 40,989.79-61,493.32-13,285.63

Finding the Fourth Proportional to 40,989.79, 61,493.32 and 13,285.63

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Solution

The fourth proportional to 40,989.79, 61,493.32 and 13,285.63 is: 19,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,989.79 : 61,493.32 = 13,285.63 : x
  2. Step 2: Convert to fraction form
    40,989.79/61,493.32 = 13,285.63/x
  3. Step 3: Cross multiply
    40,989.79x = 61,493.32 × 13,285.63
  4. Step 4: Simplify right side
    40,989.79x = 816,977,156.31
  5. Step 5: Solve for x
    x = 816,977,156.31/40,989.79
  6. Step 6: Final answer
    x = 19,931.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.