Home / 28,030.19-38,681.51-15,454.95

Finding the Fourth Proportional to 28,030.19, 38,681.51 and 15,454.95

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Solution

The fourth proportional to 28,030.19, 38,681.51 and 15,454.95 is: 21,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.19 : 38,681.51 = 15,454.95 : x
  2. Step 2: Convert to fraction form
    28,030.19/38,681.51 = 15,454.95/x
  3. Step 3: Cross multiply
    28,030.19x = 38,681.51 × 15,454.95
  4. Step 4: Simplify right side
    28,030.19x = 597,820,725.70
  5. Step 5: Solve for x
    x = 597,820,725.70/28,030.19
  6. Step 6: Final answer
    x = 21,327.74

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Half scale
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Double scale
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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.