Home / 21,444.95-29,602.70-13,897.76

Finding the Fourth Proportional to 21,444.95, 29,602.70 and 13,897.76

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Solution

The fourth proportional to 21,444.95, 29,602.70 and 13,897.76 is: 19,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,444.95 : 29,602.70 = 13,897.76 : x
  2. Step 2: Convert to fraction form
    21,444.95/29,602.70 = 13,897.76/x
  3. Step 3: Cross multiply
    21,444.95x = 29,602.70 × 13,897.76
  4. Step 4: Simplify right side
    21,444.95x = 411,411,106.68
  5. Step 5: Solve for x
    x = 411,411,106.68/21,444.95
  6. Step 6: Final answer
    x = 19,184.53

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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.