Home / 39,811.64-59,725.28-13,156.55

Finding the Fourth Proportional to 39,811.64, 59,725.28 and 13,156.55

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Solution

The fourth proportional to 39,811.64, 59,725.28 and 13,156.55 is: 19,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.64 : 59,725.28 = 13,156.55 : x
  2. Step 2: Convert to fraction form
    39,811.64/59,725.28 = 13,156.55/x
  3. Step 3: Cross multiply
    39,811.64x = 59,725.28 × 13,156.55
  4. Step 4: Simplify right side
    39,811.64x = 785,778,268.17
  5. Step 5: Solve for x
    x = 785,778,268.17/39,811.64
  6. Step 6: Final answer
    x = 19,737.40

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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.