Home / 31,740.81-47,557.62-19,223.07

Finding the Fourth Proportional to 31,740.81, 47,557.62 and 19,223.07

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Solution

The fourth proportional to 31,740.81, 47,557.62 and 19,223.07 is: 28,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.81 : 47,557.62 = 19,223.07 : x
  2. Step 2: Convert to fraction form
    31,740.81/47,557.62 = 19,223.07/x
  3. Step 3: Cross multiply
    31,740.81x = 47,557.62 × 19,223.07
  4. Step 4: Simplify right side
    31,740.81x = 914,203,458.29
  5. Step 5: Solve for x
    x = 914,203,458.29/31,740.81
  6. Step 6: Final answer
    x = 28,802.15

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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.