Home / 28,510.13-39,346.40-16,572.69

Finding the Fourth Proportional to 28,510.13, 39,346.40 and 16,572.69

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Solution

The fourth proportional to 28,510.13, 39,346.40 and 16,572.69 is: 22,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.13 : 39,346.40 = 16,572.69 : x
  2. Step 2: Convert to fraction form
    28,510.13/39,346.40 = 16,572.69/x
  3. Step 3: Cross multiply
    28,510.13x = 39,346.40 × 16,572.69
  4. Step 4: Simplify right side
    28,510.13x = 652,075,606.95
  5. Step 5: Solve for x
    x = 652,075,606.95/28,510.13
  6. Step 6: Final answer
    x = 22,871.72

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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.