Home / 25,323.67-34,969.08-15,779.85

Finding the Fourth Proportional to 25,323.67, 34,969.08 and 15,779.85

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Solution

The fourth proportional to 25,323.67, 34,969.08 and 15,779.85 is: 21,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,323.67 : 34,969.08 = 15,779.85 : x
  2. Step 2: Convert to fraction form
    25,323.67/34,969.08 = 15,779.85/x
  3. Step 3: Cross multiply
    25,323.67x = 34,969.08 × 15,779.85
  4. Step 4: Simplify right side
    25,323.67x = 551,806,837.04
  5. Step 5: Solve for x
    x = 551,806,837.04/25,323.67
  6. Step 6: Final answer
    x = 21,790.16

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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.