Home / 29,317.21-40,457.68-15,888.42

Finding the Fourth Proportional to 29,317.21, 40,457.68 and 15,888.42

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Solution

The fourth proportional to 29,317.21, 40,457.68 and 15,888.42 is: 21,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,317.21 : 40,457.68 = 15,888.42 : x
  2. Step 2: Convert to fraction form
    29,317.21/40,457.68 = 15,888.42/x
  3. Step 3: Cross multiply
    29,317.21x = 40,457.68 × 15,888.42
  4. Step 4: Simplify right side
    29,317.21x = 642,808,572.34
  5. Step 5: Solve for x
    x = 642,808,572.34/29,317.21
  6. Step 6: Final answer
    x = 21,925.98

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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.