Home / 47,394.36-65,417.28-29,478.72

Finding the Fourth Proportional to 47,394.36, 65,417.28 and 29,478.72

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Solution

The fourth proportional to 47,394.36, 65,417.28 and 29,478.72 is: 40,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,394.36 : 65,417.28 = 29,478.72 : x
  2. Step 2: Convert to fraction form
    47,394.36/65,417.28 = 29,478.72/x
  3. Step 3: Cross multiply
    47,394.36x = 65,417.28 × 29,478.72
  4. Step 4: Simplify right side
    47,394.36x = 1,928,417,680.28
  5. Step 5: Solve for x
    x = 1,928,417,680.28/47,394.36
  6. Step 6: Final answer
    x = 40,688.76

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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.