Home / 42,713.84-64,069.14-13,130.90

Finding the Fourth Proportional to 42,713.84, 64,069.14 and 13,130.90

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Solution

The fourth proportional to 42,713.84, 64,069.14 and 13,130.90 is: 19,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,713.84 : 64,069.14 = 13,130.90 : x
  2. Step 2: Convert to fraction form
    42,713.84/64,069.14 = 13,130.90/x
  3. Step 3: Cross multiply
    42,713.84x = 64,069.14 × 13,130.90
  4. Step 4: Simplify right side
    42,713.84x = 841,285,150.08
  5. Step 5: Solve for x
    x = 841,285,150.08/42,713.84
  6. Step 6: Final answer
    x = 19,695.85

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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.