Home / 30,903.05-42,646.07-16,755.91

Finding the Fourth Proportional to 30,903.05, 42,646.07 and 16,755.91

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Solution

The fourth proportional to 30,903.05, 42,646.07 and 16,755.91 is: 23,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.05 : 42,646.07 = 16,755.91 : x
  2. Step 2: Convert to fraction form
    30,903.05/42,646.07 = 16,755.91/x
  3. Step 3: Cross multiply
    30,903.05x = 42,646.07 × 16,755.91
  4. Step 4: Simplify right side
    30,903.05x = 714,573,646.05
  5. Step 5: Solve for x
    x = 714,573,646.05/30,903.05
  6. Step 6: Final answer
    x = 23,123.08

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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.