Home / 28,570.12-39,424.26-15,823.02

Finding the Fourth Proportional to 28,570.12, 39,424.26 and 15,823.02

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Solution

The fourth proportional to 28,570.12, 39,424.26 and 15,823.02 is: 21,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.12 : 39,424.26 = 15,823.02 : x
  2. Step 2: Convert to fraction form
    28,570.12/39,424.26 = 15,823.02/x
  3. Step 3: Cross multiply
    28,570.12x = 39,424.26 × 15,823.02
  4. Step 4: Simplify right side
    28,570.12x = 623,810,854.47
  5. Step 5: Solve for x
    x = 623,810,854.47/28,570.12
  6. Step 6: Final answer
    x = 21,834.38

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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.