Home / 19,976.32-29,931.42-17,915.93

Finding the Fourth Proportional to 19,976.32, 29,931.42 and 17,915.93

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Solution

The fourth proportional to 19,976.32, 29,931.42 and 17,915.93 is: 26,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.32 : 29,931.42 = 17,915.93 : x
  2. Step 2: Convert to fraction form
    19,976.32/29,931.42 = 17,915.93/x
  3. Step 3: Cross multiply
    19,976.32x = 29,931.42 × 17,915.93
  4. Step 4: Simplify right side
    19,976.32x = 536,249,423.66
  5. Step 5: Solve for x
    x = 536,249,423.66/19,976.32
  6. Step 6: Final answer
    x = 26,844.25

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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.