Home / 47,215.84-65,148.96-29,315.20

Finding the Fourth Proportional to 47,215.84, 65,148.96 and 29,315.20

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Solution

The fourth proportional to 47,215.84, 65,148.96 and 29,315.20 is: 40,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,215.84 : 65,148.96 = 29,315.20 : x
  2. Step 2: Convert to fraction form
    47,215.84/65,148.96 = 29,315.20/x
  3. Step 3: Cross multiply
    47,215.84x = 65,148.96 × 29,315.20
  4. Step 4: Simplify right side
    47,215.84x = 1,909,854,792.19
  5. Step 5: Solve for x
    x = 1,909,854,792.19/47,215.84
  6. Step 6: Final answer
    x = 40,449.45

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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.