Home / 28,437.76-42,873.20-26,433.28

Finding the Fourth Proportional to 28,437.76, 42,873.20 and 26,433.28

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Solution

The fourth proportional to 28,437.76, 42,873.20 and 26,433.28 is: 39,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,437.76 : 42,873.20 = 26,433.28 : x
  2. Step 2: Convert to fraction form
    28,437.76/42,873.20 = 26,433.28/x
  3. Step 3: Cross multiply
    28,437.76x = 42,873.20 × 26,433.28
  4. Step 4: Simplify right side
    28,437.76x = 1,133,279,300.10
  5. Step 5: Solve for x
    x = 1,133,279,300.10/28,437.76
  6. Step 6: Final answer
    x = 39,851.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.