Home / 28,570.62-39,424.95-15,823.52

Finding the Fourth Proportional to 28,570.62, 39,424.95 and 15,823.52

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Solution

The fourth proportional to 28,570.62, 39,424.95 and 15,823.52 is: 21,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.62 : 39,424.95 = 15,823.52 : x
  2. Step 2: Convert to fraction form
    28,570.62/39,424.95 = 15,823.52/x
  3. Step 3: Cross multiply
    28,570.62x = 39,424.95 × 15,823.52
  4. Step 4: Simplify right side
    28,570.62x = 623,841,287.70
  5. Step 5: Solve for x
    x = 623,841,287.70/28,570.62
  6. Step 6: Final answer
    x = 21,835.06

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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.