Home / 22,700.83-31,307.21-15,891.36

Finding the Fourth Proportional to 22,700.83, 31,307.21 and 15,891.36

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Solution

The fourth proportional to 22,700.83, 31,307.21 and 15,891.36 is: 21,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.83 : 31,307.21 = 15,891.36 : x
  2. Step 2: Convert to fraction form
    22,700.83/31,307.21 = 15,891.36/x
  3. Step 3: Cross multiply
    22,700.83x = 31,307.21 × 15,891.36
  4. Step 4: Simplify right side
    22,700.83x = 497,514,271.59
  5. Step 5: Solve for x
    x = 497,514,271.59/22,700.83
  6. Step 6: Final answer
    x = 21,916.12

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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.