Home / 35,523.61-49,024.21-20,421.16

Finding the Fourth Proportional to 35,523.61, 49,024.21 and 20,421.16

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Solution

The fourth proportional to 35,523.61, 49,024.21 and 20,421.16 is: 28,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,523.61 : 49,024.21 = 20,421.16 : x
  2. Step 2: Convert to fraction form
    35,523.61/49,024.21 = 20,421.16/x
  3. Step 3: Cross multiply
    35,523.61x = 49,024.21 × 20,421.16
  4. Step 4: Simplify right side
    35,523.61x = 1,001,130,991.16
  5. Step 5: Solve for x
    x = 1,001,130,991.16/35,523.61
  6. Step 6: Final answer
    x = 28,182.13

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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.