Home / 42,798.08-64,173.60-13,207.76

Finding the Fourth Proportional to 42,798.08, 64,173.60 and 13,207.76

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Solution

The fourth proportional to 42,798.08, 64,173.60 and 13,207.76 is: 19,804.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,798.08 : 64,173.60 = 13,207.76 : x
  2. Step 2: Convert to fraction form
    42,798.08/64,173.60 = 13,207.76/x
  3. Step 3: Cross multiply
    42,798.08x = 64,173.60 × 13,207.76
  4. Step 4: Simplify right side
    42,798.08x = 847,589,507.14
  5. Step 5: Solve for x
    x = 847,589,507.14/42,798.08
  6. Step 6: Final answer
    x = 19,804.38

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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.