Home / 19,875.18-29,784.80-15,696.84

Finding the Fourth Proportional to 19,875.18, 29,784.80 and 15,696.84

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Solution

The fourth proportional to 19,875.18, 29,784.80 and 15,696.84 is: 23,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.18 : 29,784.80 = 15,696.84 : x
  2. Step 2: Convert to fraction form
    19,875.18/29,784.80 = 15,696.84/x
  3. Step 3: Cross multiply
    19,875.18x = 29,784.80 × 15,696.84
  4. Step 4: Simplify right side
    19,875.18x = 467,527,240.03
  5. Step 5: Solve for x
    x = 467,527,240.03/19,875.18
  6. Step 6: Final answer
    x = 23,523.17

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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.