Home / 28,913.58-39,901.05-16,977.06

Finding the Fourth Proportional to 28,913.58, 39,901.05 and 16,977.06

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Solution

The fourth proportional to 28,913.58, 39,901.05 and 16,977.06 is: 23,428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.58 : 39,901.05 = 16,977.06 : x
  2. Step 2: Convert to fraction form
    28,913.58/39,901.05 = 16,977.06/x
  3. Step 3: Cross multiply
    28,913.58x = 39,901.05 × 16,977.06
  4. Step 4: Simplify right side
    28,913.58x = 677,402,519.91
  5. Step 5: Solve for x
    x = 677,402,519.91/28,913.58
  6. Step 6: Final answer
    x = 23,428.52

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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.