Home / 56,513.84-84,781.72-21,478.16

Finding the Fourth Proportional to 56,513.84, 84,781.72 and 21,478.16

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Solution

The fourth proportional to 56,513.84, 84,781.72 and 21,478.16 is: 32,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,513.84 : 84,781.72 = 21,478.16 : x
  2. Step 2: Convert to fraction form
    56,513.84/84,781.72 = 21,478.16/x
  3. Step 3: Cross multiply
    56,513.84x = 84,781.72 × 21,478.16
  4. Step 4: Simplify right side
    56,513.84x = 1,820,955,347.24
  5. Step 5: Solve for x
    x = 1,820,955,347.24/56,513.84
  6. Step 6: Final answer
    x = 32,221.41

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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.