Home / 28,225.60-42,338.40-16,415.80

Finding the Fourth Proportional to 28,225.60, 42,338.40 and 16,415.80

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Solution

The fourth proportional to 28,225.60, 42,338.40 and 16,415.80 is: 24,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.60 : 42,338.40 = 16,415.80 : x
  2. Step 2: Convert to fraction form
    28,225.60/42,338.40 = 16,415.80/x
  3. Step 3: Cross multiply
    28,225.60x = 42,338.40 × 16,415.80
  4. Step 4: Simplify right side
    28,225.60x = 695,018,706.72
  5. Step 5: Solve for x
    x = 695,018,706.72/28,225.60
  6. Step 6: Final answer
    x = 24,623.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.