Home / 30,925.34-42,677.10-16,778.19

Finding the Fourth Proportional to 30,925.34, 42,677.10 and 16,778.19

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Solution

The fourth proportional to 30,925.34, 42,677.10 and 16,778.19 is: 23,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,925.34 : 42,677.10 = 16,778.19 : x
  2. Step 2: Convert to fraction form
    30,925.34/42,677.10 = 16,778.19/x
  3. Step 3: Cross multiply
    30,925.34x = 42,677.10 × 16,778.19
  4. Step 4: Simplify right side
    30,925.34x = 716,044,459.62
  5. Step 5: Solve for x
    x = 716,044,459.62/30,925.34
  6. Step 6: Final answer
    x = 23,153.97

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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.