Home / 31,820.94-47,740.56-19,184.94

Finding the Fourth Proportional to 31,820.94, 47,740.56 and 19,184.94

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Solution

The fourth proportional to 31,820.94, 47,740.56 and 19,184.94 is: 28,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.94 : 47,740.56 = 19,184.94 : x
  2. Step 2: Convert to fraction form
    31,820.94/47,740.56 = 19,184.94/x
  3. Step 3: Cross multiply
    31,820.94x = 47,740.56 × 19,184.94
  4. Step 4: Simplify right side
    31,820.94x = 915,899,779.17
  5. Step 5: Solve for x
    x = 915,899,779.17/31,820.94
  6. Step 6: Final answer
    x = 28,782.93

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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.