Home / 42,956.72-64,409.17-19,259.97

Finding the Fourth Proportional to 42,956.72, 64,409.17 and 19,259.97

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Solution

The fourth proportional to 42,956.72, 64,409.17 and 19,259.97 is: 28,878.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,956.72 : 64,409.17 = 19,259.97 : x
  2. Step 2: Convert to fraction form
    42,956.72/64,409.17 = 19,259.97/x
  3. Step 3: Cross multiply
    42,956.72x = 64,409.17 × 19,259.97
  4. Step 4: Simplify right side
    42,956.72x = 1,240,518,681.92
  5. Step 5: Solve for x
    x = 1,240,518,681.92/42,956.72
  6. Step 6: Final answer
    x = 28,878.34

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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.