Home / 22,970.89-31,699.81-13,417.35

Finding the Fourth Proportional to 22,970.89, 31,699.81 and 13,417.35

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Solution

The fourth proportional to 22,970.89, 31,699.81 and 13,417.35 is: 18,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.89 : 31,699.81 = 13,417.35 : x
  2. Step 2: Convert to fraction form
    22,970.89/31,699.81 = 13,417.35/x
  3. Step 3: Cross multiply
    22,970.89x = 31,699.81 × 13,417.35
  4. Step 4: Simplify right side
    22,970.89x = 425,327,268.13
  5. Step 5: Solve for x
    x = 425,327,268.13/22,970.89
  6. Step 6: Final answer
    x = 18,515.92

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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.