Home / 45,510.40-62,779.58-28,511

Finding the Fourth Proportional to 45,510.40, 62,779.58 and 28,511

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Solution

The fourth proportional to 45,510.40, 62,779.58 and 28,511 is: 39,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,510.40 : 62,779.58 = 28,511 : x
  2. Step 2: Convert to fraction form
    45,510.40/62,779.58 = 28,511/x
  3. Step 3: Cross multiply
    45,510.40x = 62,779.58 × 28,511
  4. Step 4: Simplify right side
    45,510.40x = 1,789,908,605.38
  5. Step 5: Solve for x
    x = 1,789,908,605.38/45,510.40
  6. Step 6: Final answer
    x = 39,329.66

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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.