Home / 36,428.64-50,275.14-21,320.40

Finding the Fourth Proportional to 36,428.64, 50,275.14 and 21,320.40

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Solution

The fourth proportional to 36,428.64, 50,275.14 and 21,320.40 is: 29,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,428.64 : 50,275.14 = 21,320.40 : x
  2. Step 2: Convert to fraction form
    36,428.64/50,275.14 = 21,320.40/x
  3. Step 3: Cross multiply
    36,428.64x = 50,275.14 × 21,320.40
  4. Step 4: Simplify right side
    36,428.64x = 1,071,886,094.86
  5. Step 5: Solve for x
    x = 1,071,886,094.86/36,428.64
  6. Step 6: Final answer
    x = 29,424.27

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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.