Home / 28,012.47-38,657.37-15,437.22

Finding the Fourth Proportional to 28,012.47, 38,657.37 and 15,437.22

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Solution

The fourth proportional to 28,012.47, 38,657.37 and 15,437.22 is: 21,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.47 : 38,657.37 = 15,437.22 : x
  2. Step 2: Convert to fraction form
    28,012.47/38,657.37 = 15,437.22/x
  3. Step 3: Cross multiply
    28,012.47x = 38,657.37 × 15,437.22
  4. Step 4: Simplify right side
    28,012.47x = 596,762,325.31
  5. Step 5: Solve for x
    x = 596,762,325.31/28,012.47
  6. Step 6: Final answer
    x = 21,303.45

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Double scale
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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.