Home / 22,775.51-31,430.26-12,703.70

Finding the Fourth Proportional to 22,775.51, 31,430.26 and 12,703.70

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Solution

The fourth proportional to 22,775.51, 31,430.26 and 12,703.70 is: 17,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.51 : 31,430.26 = 12,703.70 : x
  2. Step 2: Convert to fraction form
    22,775.51/31,430.26 = 12,703.70/x
  3. Step 3: Cross multiply
    22,775.51x = 31,430.26 × 12,703.70
  4. Step 4: Simplify right side
    22,775.51x = 399,280,405.05
  5. Step 5: Solve for x
    x = 399,280,405.05/22,775.51
  6. Step 6: Final answer
    x = 17,531.13

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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.