Home / 28,316.61-39,077.92-15,570.76

Finding the Fourth Proportional to 28,316.61, 39,077.92 and 15,570.76

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Solution

The fourth proportional to 28,316.61, 39,077.92 and 15,570.76 is: 21,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.61 : 39,077.92 = 15,570.76 : x
  2. Step 2: Convert to fraction form
    28,316.61/39,077.92 = 15,570.76/x
  3. Step 3: Cross multiply
    28,316.61x = 39,077.92 × 15,570.76
  4. Step 4: Simplify right side
    28,316.61x = 608,473,050.24
  5. Step 5: Solve for x
    x = 608,473,050.24/28,316.61
  6. Step 6: Final answer
    x = 21,488.20

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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.