Home / 30,713.65-42,384.69-17,285.13

Finding the Fourth Proportional to 30,713.65, 42,384.69 and 17,285.13

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Solution

The fourth proportional to 30,713.65, 42,384.69 and 17,285.13 is: 23,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,713.65 : 42,384.69 = 17,285.13 : x
  2. Step 2: Convert to fraction form
    30,713.65/42,384.69 = 17,285.13/x
  3. Step 3: Cross multiply
    30,713.65x = 42,384.69 × 17,285.13
  4. Step 4: Simplify right side
    30,713.65x = 732,624,876.66
  5. Step 5: Solve for x
    x = 732,624,876.66/30,713.65
  6. Step 6: Final answer
    x = 23,853.40

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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.