Home / 42,864.07-64,264.95-17,911.26

Finding the Fourth Proportional to 42,864.07, 64,264.95 and 17,911.26

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Solution

The fourth proportional to 42,864.07, 64,264.95 and 17,911.26 is: 26,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,864.07 : 64,264.95 = 17,911.26 : x
  2. Step 2: Convert to fraction form
    42,864.07/64,264.95 = 17,911.26/x
  3. Step 3: Cross multiply
    42,864.07x = 64,264.95 × 17,911.26
  4. Step 4: Simplify right side
    42,864.07x = 1,151,066,228.34
  5. Step 5: Solve for x
    x = 1,151,066,228.34/42,864.07
  6. Step 6: Final answer
    x = 26,853.87

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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.