Home / 30,788.36-42,487.93-16,641.20

Finding the Fourth Proportional to 30,788.36, 42,487.93 and 16,641.20

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Solution

The fourth proportional to 30,788.36, 42,487.93 and 16,641.20 is: 22,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.36 : 42,487.93 = 16,641.20 : x
  2. Step 2: Convert to fraction form
    30,788.36/42,487.93 = 16,641.20/x
  3. Step 3: Cross multiply
    30,788.36x = 42,487.93 × 16,641.20
  4. Step 4: Simplify right side
    30,788.36x = 707,050,140.72
  5. Step 5: Solve for x
    x = 707,050,140.72/30,788.36
  6. Step 6: Final answer
    x = 22,964.85

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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.