Home / 22,681.91-31,290.12-14,726.63

Finding the Fourth Proportional to 22,681.91, 31,290.12 and 14,726.63

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Solution

The fourth proportional to 22,681.91, 31,290.12 and 14,726.63 is: 20,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,681.91 : 31,290.12 = 14,726.63 : x
  2. Step 2: Convert to fraction form
    22,681.91/31,290.12 = 14,726.63/x
  3. Step 3: Cross multiply
    22,681.91x = 31,290.12 × 14,726.63
  4. Step 4: Simplify right side
    22,681.91x = 460,798,019.90
  5. Step 5: Solve for x
    x = 460,798,019.90/22,681.91
  6. Step 6: Final answer
    x = 20,315.66

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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.