Home / 29,017.20-40,028.52-21,931.32

Finding the Fourth Proportional to 29,017.20, 40,028.52 and 21,931.32

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Solution

The fourth proportional to 29,017.20, 40,028.52 and 21,931.32 is: 30,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.20 : 40,028.52 = 21,931.32 : x
  2. Step 2: Convert to fraction form
    29,017.20/40,028.52 = 21,931.32/x
  3. Step 3: Cross multiply
    29,017.20x = 40,028.52 × 21,931.32
  4. Step 4: Simplify right side
    29,017.20x = 877,878,281.25
  5. Step 5: Solve for x
    x = 877,878,281.25/29,017.20
  6. Step 6: Final answer
    x = 30,253.72

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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.