Home / 28,570.95-39,426.14-15,823.93

Finding the Fourth Proportional to 28,570.95, 39,426.14 and 15,823.93

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Solution

The fourth proportional to 28,570.95, 39,426.14 and 15,823.93 is: 21,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.95 : 39,426.14 = 15,823.93 : x
  2. Step 2: Convert to fraction form
    28,570.95/39,426.14 = 15,823.93/x
  3. Step 3: Cross multiply
    28,570.95x = 39,426.14 × 15,823.93
  4. Step 4: Simplify right side
    28,570.95x = 623,876,605.33
  5. Step 5: Solve for x
    x = 623,876,605.33/28,570.95
  6. Step 6: Final answer
    x = 21,836.04

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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.