Home / 35,428.78-48,888.10-21,814.66

Finding the Fourth Proportional to 35,428.78, 48,888.10 and 21,814.66

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Solution

The fourth proportional to 35,428.78, 48,888.10 and 21,814.66 is: 30,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,428.78 : 48,888.10 = 21,814.66 : x
  2. Step 2: Convert to fraction form
    35,428.78/48,888.10 = 21,814.66/x
  3. Step 3: Cross multiply
    35,428.78x = 48,888.10 × 21,814.66
  4. Step 4: Simplify right side
    35,428.78x = 1,066,477,279.55
  5. Step 5: Solve for x
    x = 1,066,477,279.55/35,428.78
  6. Step 6: Final answer
    x = 30,102.00

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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.