Home / 28,106.50-42,147.40-14,955.75

Finding the Fourth Proportional to 28,106.50, 42,147.40 and 14,955.75

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Solution

The fourth proportional to 28,106.50, 42,147.40 and 14,955.75 is: 22,427.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.50 : 42,147.40 = 14,955.75 : x
  2. Step 2: Convert to fraction form
    28,106.50/42,147.40 = 14,955.75/x
  3. Step 3: Cross multiply
    28,106.50x = 42,147.40 × 14,955.75
  4. Step 4: Simplify right side
    28,106.50x = 630,345,977.55
  5. Step 5: Solve for x
    x = 630,345,977.55/28,106.50
  6. Step 6: Final answer
    x = 22,427.05

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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.