Home / 31,402.16-47,025.48-21,507.20

Finding the Fourth Proportional to 31,402.16, 47,025.48 and 21,507.20

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Solution

The fourth proportional to 31,402.16, 47,025.48 and 21,507.20 is: 32,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.16 : 47,025.48 = 21,507.20 : x
  2. Step 2: Convert to fraction form
    31,402.16/47,025.48 = 21,507.20/x
  3. Step 3: Cross multiply
    31,402.16x = 47,025.48 × 21,507.20
  4. Step 4: Simplify right side
    31,402.16x = 1,011,386,403.46
  5. Step 5: Solve for x
    x = 1,011,386,403.46/31,402.16
  6. Step 6: Final answer
    x = 32,207.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.