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Finding the Fourth Proportional to 29,987.87, 44,971.55 and 21,643.10

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Solution

The fourth proportional to 29,987.87, 44,971.55 and 21,643.10 is: 32,457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,987.87 : 44,971.55 = 21,643.10 : x
  2. Step 2: Convert to fraction form
    29,987.87/44,971.55 = 21,643.10/x
  3. Step 3: Cross multiply
    29,987.87x = 44,971.55 × 21,643.10
  4. Step 4: Simplify right side
    29,987.87x = 973,323,792.28
  5. Step 5: Solve for x
    x = 973,323,792.28/29,987.87
  6. Step 6: Final answer
    x = 32,457.25

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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.