Home / 25,457.23-35,130.45-13,972.42

Finding the Fourth Proportional to 25,457.23, 35,130.45 and 13,972.42

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Solution

The fourth proportional to 25,457.23, 35,130.45 and 13,972.42 is: 19,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.23 : 35,130.45 = 13,972.42 : x
  2. Step 2: Convert to fraction form
    25,457.23/35,130.45 = 13,972.42/x
  3. Step 3: Cross multiply
    25,457.23x = 35,130.45 × 13,972.42
  4. Step 4: Simplify right side
    25,457.23x = 490,857,402.19
  5. Step 5: Solve for x
    x = 490,857,402.19/25,457.23
  6. Step 6: Final answer
    x = 19,281.65

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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.