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Finding the Fourth Proportional to 35,417.60, 53,145.60 and 14,643.20

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Solution

The fourth proportional to 35,417.60, 53,145.60 and 14,643.20 is: 21,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,417.60 : 53,145.60 = 14,643.20 : x
  2. Step 2: Convert to fraction form
    35,417.60/53,145.60 = 14,643.20/x
  3. Step 3: Cross multiply
    35,417.60x = 53,145.60 × 14,643.20
  4. Step 4: Simplify right side
    35,417.60x = 778,221,649.92
  5. Step 5: Solve for x
    x = 778,221,649.92/35,417.60
  6. Step 6: Final answer
    x = 21,972.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.