Home / 42,804.80-64,213.36-13,225.24

Finding the Fourth Proportional to 42,804.80, 64,213.36 and 13,225.24

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Solution

The fourth proportional to 42,804.80, 64,213.36 and 13,225.24 is: 19,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,804.80 : 64,213.36 = 13,225.24 : x
  2. Step 2: Convert to fraction form
    42,804.80/64,213.36 = 13,225.24/x
  3. Step 3: Cross multiply
    42,804.80x = 64,213.36 × 13,225.24
  4. Step 4: Simplify right side
    42,804.80x = 849,237,097.21
  5. Step 5: Solve for x
    x = 849,237,097.21/42,804.80
  6. Step 6: Final answer
    x = 19,839.76

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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.