Home / 21,424,101.57-29,565,168.75-11,634,477.21

Finding the Fourth Proportional to 21,424,101.57, 29,565,168.75 and 11,634,477.21

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Solution

The fourth proportional to 21,424,101.57, 29,565,168.75 and 11,634,477.21 is: 16,055,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424,101.57 : 29,565,168.75 = 11,634,477.21 : x
  2. Step 2: Convert to fraction form
    21,424,101.57/29,565,168.75 = 11,634,477.21/x
  3. Step 3: Cross multiply
    21,424,101.57x = 29,565,168.75 × 11,634,477.21
  4. Step 4: Simplify right side
    21,424,101.57x = 343,975,282,031,679.19
  5. Step 5: Solve for x
    x = 343,975,282,031,679.19/21,424,101.57
  6. Step 6: Final answer
    x = 16,055,528.91

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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.