Home / 42,559.45-63,846.78-14,478.07

Finding the Fourth Proportional to 42,559.45, 63,846.78 and 14,478.07

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Solution

The fourth proportional to 42,559.45, 63,846.78 and 14,478.07 is: 21,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,559.45 : 63,846.78 = 14,478.07 : x
  2. Step 2: Convert to fraction form
    42,559.45/63,846.78 = 14,478.07/x
  3. Step 3: Cross multiply
    42,559.45x = 63,846.78 × 14,478.07
  4. Step 4: Simplify right side
    42,559.45x = 924,378,150.11
  5. Step 5: Solve for x
    x = 924,378,150.11/42,559.45
  6. Step 6: Final answer
    x = 21,719.69

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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.