Home / 21,410.48-29,526.90-18,384.63

Finding the Fourth Proportional to 21,410.48, 29,526.90 and 18,384.63

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Solution

The fourth proportional to 21,410.48, 29,526.90 and 18,384.63 is: 25,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410.48 : 29,526.90 = 18,384.63 : x
  2. Step 2: Convert to fraction form
    21,410.48/29,526.90 = 18,384.63/x
  3. Step 3: Cross multiply
    21,410.48x = 29,526.90 × 18,384.63
  4. Step 4: Simplify right side
    21,410.48x = 542,841,131.55
  5. Step 5: Solve for x
    x = 542,841,131.55/21,410.48
  6. Step 6: Final answer
    x = 25,354.00

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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.