Home / 30,638,250.92-42,280,872-16,887,269.72

Finding the Fourth Proportional to 30,638,250.92, 42,280,872 and 16,887,269.72

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Solution

The fourth proportional to 30,638,250.92, 42,280,872 and 16,887,269.72 is: 23,304,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638,250.92 : 42,280,872 = 16,887,269.72 : x
  2. Step 2: Convert to fraction form
    30,638,250.92/42,280,872 = 16,887,269.72/x
  3. Step 3: Cross multiply
    30,638,250.92x = 42,280,872 × 16,887,269.72
  4. Step 4: Simplify right side
    30,638,250.92x = 714,008,489,460,795.75
  5. Step 5: Solve for x
    x = 714,008,489,460,795.75/30,638,250.92
  6. Step 6: Final answer
    x = 23,304,479.47

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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.