Home / 22,851.18-31,534.40-12,779.51

Finding the Fourth Proportional to 22,851.18, 31,534.40 and 12,779.51

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Solution

The fourth proportional to 22,851.18, 31,534.40 and 12,779.51 is: 17,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,851.18 : 31,534.40 = 12,779.51 : x
  2. Step 2: Convert to fraction form
    22,851.18/31,534.40 = 12,779.51/x
  3. Step 3: Cross multiply
    22,851.18x = 31,534.40 × 12,779.51
  4. Step 4: Simplify right side
    22,851.18x = 402,994,054.42
  5. Step 5: Solve for x
    x = 402,994,054.42/22,851.18
  6. Step 6: Final answer
    x = 17,635.59

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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.