Home / 42,692.04-64,036.38-13,108.36

Finding the Fourth Proportional to 42,692.04, 64,036.38 and 13,108.36

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Solution

The fourth proportional to 42,692.04, 64,036.38 and 13,108.36 is: 19,662.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,692.04 : 64,036.38 = 13,108.36 : x
  2. Step 2: Convert to fraction form
    42,692.04/64,036.38 = 13,108.36/x
  3. Step 3: Cross multiply
    42,692.04x = 64,036.38 × 13,108.36
  4. Step 4: Simplify right side
    42,692.04x = 839,411,922.14
  5. Step 5: Solve for x
    x = 839,411,922.14/42,692.04
  6. Step 6: Final answer
    x = 19,662.02

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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.