Home / 28,725.84-39,637.08-17,393.40

Finding the Fourth Proportional to 28,725.84, 39,637.08 and 17,393.40

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Solution

The fourth proportional to 28,725.84, 39,637.08 and 17,393.40 is: 24,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.84 : 39,637.08 = 17,393.40 : x
  2. Step 2: Convert to fraction form
    28,725.84/39,637.08 = 17,393.40/x
  3. Step 3: Cross multiply
    28,725.84x = 39,637.08 × 17,393.40
  4. Step 4: Simplify right side
    28,725.84x = 689,423,587.27
  5. Step 5: Solve for x
    x = 689,423,587.27/28,725.84
  6. Step 6: Final answer
    x = 24,000.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.