Home / 34,720.40-47,913.58-18,804.72

Finding the Fourth Proportional to 34,720.40, 47,913.58 and 18,804.72

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Solution

The fourth proportional to 34,720.40, 47,913.58 and 18,804.72 is: 25,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,720.40 : 47,913.58 = 18,804.72 : x
  2. Step 2: Convert to fraction form
    34,720.40/47,913.58 = 18,804.72/x
  3. Step 3: Cross multiply
    34,720.40x = 47,913.58 × 18,804.72
  4. Step 4: Simplify right side
    34,720.40x = 901,001,456.10
  5. Step 5: Solve for x
    x = 901,001,456.10/34,720.40
  6. Step 6: Final answer
    x = 25,950.20

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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.