Home / 30,916.87-42,671.65-17,488.69

Finding the Fourth Proportional to 30,916.87, 42,671.65 and 17,488.69

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Solution

The fourth proportional to 30,916.87, 42,671.65 and 17,488.69 is: 24,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.87 : 42,671.65 = 17,488.69 : x
  2. Step 2: Convert to fraction form
    30,916.87/42,671.65 = 17,488.69/x
  3. Step 3: Cross multiply
    30,916.87x = 42,671.65 × 17,488.69
  4. Step 4: Simplify right side
    30,916.87x = 746,271,258.64
  5. Step 5: Solve for x
    x = 746,271,258.64/30,916.87
  6. Step 6: Final answer
    x = 24,138.00

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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.