Home / 28,368.09-39,154.86-16,429.50

Finding the Fourth Proportional to 28,368.09, 39,154.86 and 16,429.50

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Solution

The fourth proportional to 28,368.09, 39,154.86 and 16,429.50 is: 22,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.09 : 39,154.86 = 16,429.50 : x
  2. Step 2: Convert to fraction form
    28,368.09/39,154.86 = 16,429.50/x
  3. Step 3: Cross multiply
    28,368.09x = 39,154.86 × 16,429.50
  4. Step 4: Simplify right side
    28,368.09x = 643,294,772.37
  5. Step 5: Solve for x
    x = 643,294,772.37/28,368.09
  6. Step 6: Final answer
    x = 22,676.70

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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.