Home / 28,012.50-38,657.25-15,437.52

Finding the Fourth Proportional to 28,012.50, 38,657.25 and 15,437.52

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Solution

The fourth proportional to 28,012.50, 38,657.25 and 15,437.52 is: 21,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.50 : 38,657.25 = 15,437.52 : x
  2. Step 2: Convert to fraction form
    28,012.50/38,657.25 = 15,437.52/x
  3. Step 3: Cross multiply
    28,012.50x = 38,657.25 × 15,437.52
  4. Step 4: Simplify right side
    28,012.50x = 596,772,070.02
  5. Step 5: Solve for x
    x = 596,772,070.02/28,012.50
  6. Step 6: Final answer
    x = 21,303.78

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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.