Home / 28,566.06-39,420.54-15,818.52

Finding the Fourth Proportional to 28,566.06, 39,420.54 and 15,818.52

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Solution

The fourth proportional to 28,566.06, 39,420.54 and 15,818.52 is: 21,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.06 : 39,420.54 = 15,818.52 : x
  2. Step 2: Convert to fraction form
    28,566.06/39,420.54 = 15,818.52/x
  3. Step 3: Cross multiply
    28,566.06x = 39,420.54 × 15,818.52
  4. Step 4: Simplify right side
    28,566.06x = 623,574,600.40
  5. Step 5: Solve for x
    x = 623,574,600.40/28,566.06
  6. Step 6: Final answer
    x = 21,829.21

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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.