Home / 30,779.58-42,417.80-22,267.23

Finding the Fourth Proportional to 30,779.58, 42,417.80 and 22,267.23

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Solution

The fourth proportional to 30,779.58, 42,417.80 and 22,267.23 is: 30,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,779.58 : 42,417.80 = 22,267.23 : x
  2. Step 2: Convert to fraction form
    30,779.58/42,417.80 = 22,267.23/x
  3. Step 3: Cross multiply
    30,779.58x = 42,417.80 × 22,267.23
  4. Step 4: Simplify right side
    30,779.58x = 944,526,908.69
  5. Step 5: Solve for x
    x = 944,526,908.69/30,779.58
  6. Step 6: Final answer
    x = 30,686.80

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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.