Home / 30,788.23-42,487.76-16,641.07

Finding the Fourth Proportional to 30,788.23, 42,487.76 and 16,641.07

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Solution

The fourth proportional to 30,788.23, 42,487.76 and 16,641.07 is: 22,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.23 : 42,487.76 = 16,641.07 : x
  2. Step 2: Convert to fraction form
    30,788.23/42,487.76 = 16,641.07/x
  3. Step 3: Cross multiply
    30,788.23x = 42,487.76 × 16,641.07
  4. Step 4: Simplify right side
    30,788.23x = 707,041,749.58
  5. Step 5: Solve for x
    x = 707,041,749.58/30,788.23
  6. Step 6: Final answer
    x = 22,964.68

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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.